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Base Layers

55 Products

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99
in Men's Base Layers

Patagonia Patagonia Men's Capilene® Midweight Baselayer Crewneck

A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Mint odor control keeps things fresh. Made in a Fair Trade Certified™ factory.

Scored Product Attributes

99
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Recycled Polyester

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT recognizes businesses that meet high standards of social and environmental performance, accountability and transparency as certified by B Lab.

This CERT verifies that products meet Fair Trade standards, ensuring ethical sourcing, fair wages, safe working conditions and environmental sustainability throughout the supply chain.
Warranty: Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.

The 1% for the Planet® Impact Fund at National Philanthropic Trust offers a unique philanthropic opportunity to drive positive change for our planet and future generations.
icon representing Environmental criteria factor Enviro

This brand uses renewable energy sources such as solar, wind, or hydro power to run its operations.

This brand offers repair services or programs to extend the life of its products and reduce waste.

This brand supports initiatives to protect water resources and reduce water consumption.
icon representing Governance criteria factor Governance

A label that describes what it takes to make an individual product. More than just a materials listing, this includes water usage, energy consumption, cost breakdown, carbon footprint, certifications, and maybe more
icon representing item origin Origins
Made in Sri Lanka
95
in Men's Base Layers

Norrøna Norrna pureUll Wool Longs for men

Premium 100% merino wool baselayer longs for men. Perfect for all outdoor activities, and also suitable for everyday use because of its clean design.

Scored Product Attributes

95
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that textiles and textile products are tested for harmful substances to ensure they meet strict safety limits for chemicals like pesticides, heavy metals and formaldehyde throughout the production process.

This CERT verifies that wool is sourced from farms that follow humane treatment of sheep and sustainable land management practices, ensuring animal welfare and environmental responsibility throughout the supply chain.
Warranty: Over 3-5 Year

Good To Know - Brand Attributes

icon representing item origin Origins
Made in Lithuania
74
in Men's Base Layers

ORTOVOX ORTOVOX 185 ROCKNWOOL SHORT PANTS M | 3/4 underpants

ORTOVOX 3/4 underpants 185 ROCKNWOOL SHORT PANTS M. Our 185 ROCK'N'WOOL SHORT PANTS for men are extra soft and keep you warm when the weather gets cold and the going gets tough thanks to their fine merino wool. Freeriding starts with the first layer of clothing, as this layer is crucial for functionality. The short pants is made of 100% fine merino wool with a fineness of 19 microns. It feels comfortable on the skin and ensures an optimum climate thanks to its temperature and moisture-regulating qualities. Our classic also has a brand new look: The split design and fresh colors with multi-colored twisted yarn and on-trend waistband reflect the multi-faceted nature of your winter adventures. The 185 ROCK'N'WOOL SHORT PANTS for men are an absolute must for any freeride!

Scored Product Attributes

74
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

PFC Free

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that wool is sourced from farms that follow humane treatment of sheep and sustainable land management practices, ensuring animal welfare and environmental responsibility throughout the supply chain.

This CERT verifies that clothing brands meet the standards set by Fair Wear Foundation, focusing on fair labor practices, safe working conditions and workers' rights throughout the garment supply chain.
Warranty: Over 1 - 2 Year

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Standards ensuring that animal derived materials used in the products come from animals that were treated humanely
icon representing Environmental criteria factor Enviro

This brand participates in carbon offset programs to neutralize its carbon emissions.
74
in Men's Base Layers

ORTOVOX ORTOVOX 185 ROCK'N'WOOL LONG SLEEVE M | Base Layer Long

ORTOVOX Base Layer Long 185 ROCK'N'WOOL LONG SLEEVE M. Our 185 ROCK'N'WOOL LONG SLEEVE for men is extra soft and keeps you warm when the weather gets cold and the going gets tough thanks to its fine merino wool. Freeriding starts with the first layer of clothing, as this layer is crucial for functionality. The longsleeve is made of 100% fine merino wool with a fineness of 19 microns. It feels comfortable on the skin and ensures an optimum climate thanks to its temperature and moisture-regulating qualities. This classic also scores with its fresh new look: The split, asymmetrical design and bright colors with multi-colored twisted yarn reflect the multi-faceted nature of your winter adventures. The 185 ROCK'N'WOOL LONG SLEEVE for men is a must-have on the mountain!

Scored Product Attributes

74
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

PFC Free

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that clothing brands meet the standards set by Fair Wear Foundation, focusing on fair labor practices, safe working conditions and workers' rights throughout the garment supply chain.

This CERT verifies that wool is sourced from farms that follow humane treatment of sheep and sustainable land management practices, ensuring animal welfare and environmental responsibility throughout the supply chain.
Warranty: Over 1 - 2 Year

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Standards ensuring that animal derived materials used in the products come from animals that were treated humanely
icon representing Environmental criteria factor Enviro

This brand participates in carbon offset programs to neutralize its carbon emissions.
74
in Men's Base Layers

ORTOVOX ORTOVOX 185 ROCKNWOOL SHORT SLEEVE M | Short sleeve |

ORTOVOX Short sleeve | tank tops 185 ROCKNWOOL SHORT SLEEVE M. Our 185 ROCK'N'WOOL SHORT SLEEVE for men is extra soft and keeps you warm when the weather gets cold and the going gets tough thanks to its fine merino wool. Freeriding starts with the first layer of clothing, as this layer is crucial for functionality. The shortsleeve is made of 100% fine merino wool with a fineness of 19 microns. It feels comfortable on the skin and ensures an optimum climate thanks to its temperature and moisture-regulating qualities. This classic also scores with its fresh new look: The split, asymmetrical design and bright colors with multi-colored twisted yarn reflect the multi-faceted nature of your winter adventures. The 185 ROCK'N'WOOL SHORT SLEEVE for men is a must-have on the mountain!

Scored Product Attributes

74
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

PFC Free

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that clothing brands meet the standards set by Fair Wear Foundation, focusing on fair labor practices, safe working conditions and workers' rights throughout the garment supply chain.

This CERT verifies that wool is sourced from farms that follow humane treatment of sheep and sustainable land management practices, ensuring animal welfare and environmental responsibility throughout the supply chain.
Warranty: Over 1 - 2 Year

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Standards ensuring that animal derived materials used in the products come from animals that were treated humanely
icon representing Environmental criteria factor Enviro

This brand participates in carbon offset programs to neutralize its carbon emissions.
70
in Men's Base Layers

Houdini Sportswear M's Drop Knee Power Tights | Houdini Sportswear

Fleece tights with legs in Polartec Power Stretch Pro. Use them next to skin or layer over your base layer for extra warmth.

Scored Product Attributes

70
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that textiles are produced with minimal environmental impact, focusing on safe chemical use, resource efficiency and worker safety as set by Bluesign.
Warranty: Lifetime

Good To Know - Brand Attributes

icon representing Environmental criteria factor Enviro

This brand offers return, trade-in or buy-back programs for its own or industry products to encourage product reuse and reduce waste.

This brand offers repair services or programs to extend the life of its products and reduce waste.

Company that is taking steps to eliminate all plastics in their production and packaging.

This brand allows customers to rent items instead of purchasing them outright, promoting sustainable consumption and reducing waste.
65
in Men's Base Layers

Helly Hansen HH TECH T-SHIRT

Our Active Tech T-shirt has the technical details to keep you comfortable on a summer adventure, plus the style for urban life. We used a 22% recycled jersey fabric thats soft, quick-dry and sun protective with planet-friendly S.Caf technology. The S.C

Scored Product Attributes

65
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

S.Cafe

UPF 50+

Recycled Fabrics

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that textiles are produced with minimal environmental impact, focusing on safe chemical use, resource efficiency and worker safety as set by Bluesign.
Warranty: Over 1 - 2 Year

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand offers discounts for first responders, including police, firefighters, and EMTs.

This brand offers discounts for medical professionals to support their contributions to healthcare.

This brand provides discounts for active military members and veterans.
62
in Men's Base Layers

Helly Hansen HH TECH CREW LS SHIRT

Our long sleeve crew shirt has the technical properties to keep you comfortable on your next adventure. We used a polyester fabric thats soft, quick-dry and has wicking properties. It also has UPF 50+ sun protection. Were committed to reducing environm

Scored Product Attributes

62
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

UPF 50+

Recycled Fabrics

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that textiles are produced with minimal environmental impact, focusing on safe chemical use, resource efficiency and worker safety as set by Bluesign.
Warranty: Over 1 - 2 Year

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand offers discounts for first responders, including police, firefighters, and EMTs.

This brand offers discounts for medical professionals to support their contributions to healthcare.

This brand provides discounts for active military members and veterans.
46
in Men's Base Layers

66°North Bsar | 66North

100% Merino Wool. Regulates body temperature by controlling the rate of evaporative cooling. Soft next to skin with flat needle stitching for no-rub comfort. Naturally moves moisture away from skin. Matching zipneck or crewneck available. 10% set discount.

Scored Product Attributes

46
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT recognizes businesses that meet high standards of social and environmental performance, accountability and transparency as certified by B Lab.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand has established goals and programs aimed at promoting gender equality, demonstrating its commitment to fostering an inclusive and equitable workplace.

Company participates in community outreach or activism programs.
icon representing Environmental criteria factor Enviro

This brand participates in programs that upcycle, repurpose, or utilize deadstock materials to create new products.

This brand uses renewable energy sources such as solar, wind, or hydro power to run its operations.

This brand offers repair services or programs to extend the life of its products and reduce waste.

This brand participates in carbon offset programs to neutralize its carbon emissions.

This brand supports tree planting programs or plants a tree for every purchase.

This brand offers recycling services for its purchased products or for products within the same industry.
icon representing Governance criteria factor Governance

Programs or initiatives that state a brand's objective to limit their scale of production to prevent waste
46
in Men's Base Layers

66°North Bsar | 66North

100% Merino Wool. Regulates body temperature by controlling the rate of evaporate cooling. Soft next to skin with flat needle stitching for no-rub comfort and itch free. Naturally moves moisture away from skin with fine zipper at the neck for extra ventilation. Matching pants available. 10% set discount.

Scored Product Attributes

46
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT recognizes businesses that meet high standards of social and environmental performance, accountability and transparency as certified by B Lab.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand has established goals and programs aimed at promoting gender equality, demonstrating its commitment to fostering an inclusive and equitable workplace.

Company participates in community outreach or activism programs.
icon representing Environmental criteria factor Enviro

This brand participates in programs that upcycle, repurpose, or utilize deadstock materials to create new products.

This brand uses renewable energy sources such as solar, wind, or hydro power to run its operations.

This brand offers repair services or programs to extend the life of its products and reduce waste.

This brand participates in carbon offset programs to neutralize its carbon emissions.

This brand supports tree planting programs or plants a tree for every purchase.

This brand offers recycling services for its purchased products or for products within the same industry.
icon representing Governance criteria factor Governance

Programs or initiatives that state a brand's objective to limit their scale of production to prevent waste
45
in Men's Base Layers

66°North Vk | 66North

Incredibly warm base layer tights made of Polartec Power Stretch Pro fabric. The fabric is quick drying, four-way stretch for better movement and fit and provides lightweight warmth. Its comfortable both as a base layer as well as a mid layer. Matching zipneck available. 10% set discount.

Scored Product Attributes

45
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT recognizes businesses that meet high standards of social and environmental performance, accountability and transparency as certified by B Lab.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand has established goals and programs aimed at promoting gender equality, demonstrating its commitment to fostering an inclusive and equitable workplace.

Company participates in community outreach or activism programs.
icon representing Environmental criteria factor Enviro

This brand participates in programs that upcycle, repurpose, or utilize deadstock materials to create new products.

This brand uses renewable energy sources such as solar, wind, or hydro power to run its operations.

This brand offers repair services or programs to extend the life of its products and reduce waste.

This brand participates in carbon offset programs to neutralize its carbon emissions.

This brand supports tree planting programs or plants a tree for every purchase.

This brand offers recycling services for its purchased products or for products within the same industry.
icon representing Governance criteria factor Governance

Programs or initiatives that state a brand's objective to limit their scale of production to prevent waste
16
in Men's Base Layers

Outdoor Research Women's Alpine Onset Merino 150 Bottoms-Plus | Outdoor Research

The Alpine Onset Merino 150 Plus Base Layers feature a newly updated, softer, non-mulesed merino wool blend and UPF 30 sun protection for stretchy, moisture-wicking, breathable warmth that's naturally odor-resistant for extended, multi-day wear between washings.

Scored Product Attributes

16
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

UPF 30

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Standards ensuring that animal derived materials used in the products come from animals that were treated humanely
icon representing Environmental criteria factor Enviro

This brand uses renewable energy sources such as solar, wind, or hydro power to run its operations.
icon representing item origin Origins
Made in Vietnam
16
in Men's Base Layers

Outdoor Research Men's Alpine Onset Merino 150 Bottoms | Outdoor Research

The Alpine Onset Merino 150 Base Layers feature a newly updated, softer, non-mulesed merino wool blend and UPF 30 sun protection for stretchy, moisture-wicking, breathable warmth that's naturally odor-resistant for extended, multi-day wear between washings.

Scored Product Attributes

16
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

UPF 30

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Standards ensuring that animal derived materials used in the products come from animals that were treated humanely
icon representing Environmental criteria factor Enviro

This brand uses renewable energy sources such as solar, wind, or hydro power to run its operations.
icon representing item origin Origins
Made in Vietnam
16
in Men's Base Layers

Outdoor Research Men's Alpine Onset Merino 150 Hoodie | Outdoor Research

The Alpine Onset Merino 150 Base Layers feature a newly updated, softer, non-mulesed merino wool blend and UPF 30 sun protection for stretchy, moisture-wicking, breathable warmth that's naturally odor-resistant for extended, multi-day wear between washings.

Scored Product Attributes

16
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

UPF 30

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Standards ensuring that animal derived materials used in the products come from animals that were treated humanely
icon representing Environmental criteria factor Enviro

This brand uses renewable energy sources such as solar, wind, or hydro power to run its operations.
icon representing item origin Origins
Made in Vietnam
16
in Men's Base Layers

Outdoor Research Men's Alpine Onset Merino 150 Crew | Outdoor Research

The Alpine Onset Merino 150 Base Layers feature a newly updated, softer, non-mulesed merino wool blend and UPF 30 sun protection for stretchy, moisture-wicking, breathable warmth that's naturally odor-resistant for extended, multi-day wear between washings.

Scored Product Attributes

16
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

UPF 30

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Standards ensuring that animal derived materials used in the products come from animals that were treated humanely
icon representing Environmental criteria factor Enviro

This brand uses renewable energy sources such as solar, wind, or hydro power to run its operations.
icon representing item origin Origins
Made in Vietnam
15
in Men's Base Layers

Stio Men's Basis Power Wool Zip Neck

A hybrid merino wool baselayer that manages moisture to keep you dry during any high-output, cold-weather pursuit.

Scored Product Attributes

15
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Lifetime

Good To Know - Brand Attributes

icon representing Environmental criteria factor Enviro

This brand participates in carbon offset programs to neutralize its carbon emissions.
15
in Men's Base Layers

Stio Men's Basis Power Wool Tight

Hybrid merino wool baselayer bottoms that manage moisture and keep you dry during any high-output, cold-weather pursuit.

Scored Product Attributes

15
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Lifetime

Good To Know - Brand Attributes

icon representing Environmental criteria factor Enviro

This brand participates in carbon offset programs to neutralize its carbon emissions.
15
in Men's Base Layers

Stio Men's Teton Elevations Tee

Displaying the peaks and valleys of the Teton mountainscape printed on a comfortable cotton-poly tee.

Scored Product Attributes

15
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Lifetime

Good To Know - Brand Attributes

icon representing Environmental criteria factor Enviro

This brand participates in carbon offset programs to neutralize its carbon emissions.
13
in Men's Base Layers

Black Diamond Women's Solution 150 Merino Baselayer Full Length Bottom | Black Diamond Equipment

Explore the Women's Solution 150 Merino Baselayer Full Length Bottom. The perfect layer for managing body temperature throughout long days, these feature NuYarn patented stretch merino wool and are naturally bacteria and odor resistant.

Scored Product Attributes

13
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Limited Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand offers discounts for first responders, including police, firefighters, and EMTs.

This brand provides discounts for active military members and veterans.

Company participates in community outreach or activism programs.

This brand offers discounts for teachers and educators to support their contributions to education.

This brand offers discounts for students.
icon representing Environmental criteria factor Enviro

This brand participates in carbon offset programs to neutralize its carbon emissions.
13
in Men's Base Layers

Black Diamond Men's Solution 150 Merino Baselayer Crew | Black Diamond Equipment

Explore the Men's Solution 150 Merino Baselayer Crew. Featuring NuYarn's fine merino wool technology for strong thermoregulation and moisture management, thumb holes and flatlock stitched seems, this is the ideal layer for any day in the snow.

Scored Product Attributes

13
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Limited Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand offers discounts for first responders, including police, firefighters, and EMTs.

This brand provides discounts for active military members and veterans.

Company participates in community outreach or activism programs.

This brand offers discounts for teachers and educators to support their contributions to education.

This brand offers discounts for students.
icon representing Environmental criteria factor Enviro

This brand participates in carbon offset programs to neutralize its carbon emissions.
12
in Men's Base Layers

Black Diamond Men's Recon Insulated Pants

Built for riders and skiers who desire extra warmth, the Recon Stretch Insulated Pants provide protection in the harshest winter conditions. Lined with zoned Thermolite insulation, these pants are breathable and mobile where you need it while providing added warmth for the rest of your lower body.Featuring 4-way stretc

Scored Product Attributes

12
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Limited Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand offers discounts for first responders, including police, firefighters, and EMTs.

This brand provides discounts for active military members and veterans.

Company participates in community outreach or activism programs.

This brand offers discounts for teachers and educators to support their contributions to education.

This brand offers discounts for students.
icon representing Environmental criteria factor Enviro

This brand participates in carbon offset programs to neutralize its carbon emissions.
icon representing item origin Origins
Made in Vietnam
12
in Men's Base Layers

Fjällräven High Coast Lite Merino Knit M

A really light, comfortable sweater in traceable merino wool. Perfect as a first layer, against the skin, but it can also be worn over a t-shirt as a lighter mid layer.

Scored Product Attributes

12
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Limited Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Standards ensuring that animal derived materials used in the products come from animals that were treated humanely

This brand supports wildlife conservation programs to protect and preserve natural habitats and species.
icon representing Environmental criteria factor Enviro

This brand claims to operate with zero-waste practices, aiming for at least 90% waste reduction through sustainable production and consumption methods.
12
in Men's Base Layers

Fjällräven Bergtagen Long Johns M

Comfortable base-layer long johns in merino blend. Perfect for all kinds of outdoor pursuits with varying levels of activity.

Scored Product Attributes

12
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Limited Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Standards ensuring that animal derived materials used in the products come from animals that were treated humanely

This brand supports wildlife conservation programs to protect and preserve natural habitats and species.
icon representing Environmental criteria factor Enviro

This brand claims to operate with zero-waste practices, aiming for at least 90% waste reduction through sustainable production and consumption methods.
12
in Men's Base Layers

Fjällräven Bergtagen Thinwool Long Johns M

Light, soft long johns in merino wool for alpine trips in the spring and summer.

Scored Product Attributes

12
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Limited Lifetime

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Standards ensuring that animal derived materials used in the products come from animals that were treated humanely

This brand supports wildlife conservation programs to protect and preserve natural habitats and species.
icon representing Environmental criteria factor Enviro

This brand claims to operate with zero-waste practices, aiming for at least 90% waste reduction through sustainable production and consumption methods.
8
in Men's Base Layers

L.L.Bean Men's Cresta Wool Ultralight 150 Base Layer, Hoodie | Base Layers at L.L.Bean

Find the best Men's Cresta Wool Ultralight 150 Base Layer, Hoodie at L.L.Bean. Our high quality null Base Layers are thoughtfully designed and built to last season after season.

Scored Product Attributes

8
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: 1 year

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand provides discounts for active military members and veterans.

This brand supports Diversity, Equity, and Inclusion (DEI) initiatives, promoting a diverse and inclusive workplace and community.

This brand offers discounts for teachers and educators to support their contributions to education.

This brand offers discounts for students.
8
in Men's Base Layers

Meriwool MEN'S MERINO 400 HENLEY

Dress up comfortably with men's merino wool henley made in the USA from Meriwool Layers. It has 100% all-natural superfine 18.5-micron offers utmost comfort.

Scored Product Attributes

8
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: 1 year
8
in Men's Base Layers

Meriwool MEN'S MERINO 180 BASE LAYER LONG SLEEVE

Shop our lightest Mens 180g Merino Wool Long Sleeve Shirt Today! Super soft & breathable with 17.5 micron rib knit construction and raglan sleeves, its sure to become your favorite!

Scored Product Attributes

8
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: 1 year
8
in Men's Base Layers

Meriwool MEN'S MERINO 400 BASE LAYER BOTTOM

All natural merino wool base layers that can be found in Meriwool's bottoms for men. This has become an essential clothing nowadays. Get yours from Meriwool today!

Scored Product Attributes

8
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: 1 year
8
in Men's Base Layers

Meriwool MEN'S MERINO 190 BASE LAYER SHORT SLEEVE T SHIRT

Looking to stay fresh during those warmer months? Our mens merino wool base layer tees regulate your body temperature, keeping you cool all day! Shop Now!

Scored Product Attributes

8
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: 1 year
8
in Men's Base Layers

Brynje Hi-Tech Merino Wool Thermal Underwear | Unisex Wool Base Layer Zip Polo

Perfect merino wool base layer for winter expeditions. Best performance in wicking & insulation. Explore in confidence with the leader in thermal clothing.

Scored Product Attributes

8
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: 1 year
8
in Men's Base Layers

Meriwool MEN'S MERINO 190 BASE LAYER SHORT SLEEVE POLO SHIRT

Whether you're out on the golf course our in the office, our Mens Merino Wool Polo T Shirt is sure to keep you dry and comfortable! Shop Now!

Scored Product Attributes

8
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: 1 year
8
in Men's Base Layers

Meriwool MEN'S MERINO 190 BASE LAYER LONG SLEEVE HENLEY

Are you looking for that perfect travel shirt? Look no further! Our Mens Merino Wool Henley Long Sleeve is ready for stroll through the city or used for layering! Shop Now!

Scored Product Attributes

8
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: 1 year
8
in Men's Base Layers

Meriwool MEN'S MERINO 250 BASE LAYER BOTTOM

Men's merino 250 base layer bottom is simple and cozy. This affordable Meriwool Layer piece is full of comfort and style. Check for more products now!

Scored Product Attributes

8
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: 1 year
8
in Men's Base Layers

Meriwool MEN'S MERINO BLEND CREW KNIT SWEATER

Searching for a knit sweater? Merino wool sweater for men with anti-bacterial and odor-resistant properties to keep you dry and comfortable. Shop at Meriwool.

Scored Product Attributes

8
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Merino Wool

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Warranty: 1 year
8
in Men's Base Layers

Meriwool MEN'S MERINO 250 MIDWEIGHT HALF ZIP TOP

Own your style! This half zip merino garments is definitely your best choice. All natural and comfortable wool materials. Shop now at Meriwool Layers!

Scored Product Attributes

8
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: 1 year
8
in Men's Base Layers

L.L.Bean Men's No Fly Zone Bug Skin Base Layer Top, Long-Sleeve | Base Layers at L.L.Bean

Find the best Men's No Fly Zone Bug Skin Base Layer Top, Long-Sleeve at L.L.Bean. Our high quality null Base Layers are thoughtfully designed and built to last season after season.

Scored Product Attributes

8
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Warranty: 1 year

Good To Know - Brand Attributes

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This brand provides discounts for active military members and veterans.

This brand supports Diversity, Equity, and Inclusion (DEI) initiatives, promoting a diverse and inclusive workplace and community.

This brand offers discounts for teachers and educators to support their contributions to education.

This brand offers discounts for students.
7
in Men's Base Layers

Helly Hansen MEN'S LIFA MERINO LIGHTWEIGHT T-SHIRT

Our LIFA MERINO Lightweight Tee is perfect for any adventure where you need a warm, breathable and wicking base layer. This useful piece combines our unique Lifa wicking technology with soft merino wool for a breathable, natural warmth.

Scored Product Attributes

7
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Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Over 1 - 2 Year

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand offers discounts for first responders, including police, firefighters, and EMTs.

This brand offers discounts for medical professionals to support their contributions to healthcare.

This brand provides discounts for active military members and veterans.
7
in Men's Base Layers

Helly Hansen LIFA Merino Lightweight Half-zip 2-in-1 Base Layer

Our LIFA Merino Lightweight collection is versatile and ideal for all cold weather activities. We used our proven 2-in-1 layer system, combining LIFA Stay Warm moisture management and the natural warmth of merino in an extremely lightweight half-zip. LI

Scored Product Attributes

7
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Over 1 - 2 Year

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand offers discounts for first responders, including police, firefighters, and EMTs.

This brand offers discounts for medical professionals to support their contributions to healthcare.

This brand provides discounts for active military members and veterans.
7
in Men's Base Layers

Helly Hansen LIFA MERINO MIDWEIGHT 1/2 ZIP

Our LIFA Merino Midweight collection is perfect for any type of activity in cold weather. We combined a 100% merino wool layer with our proven LIFA Stay Warm tech in a 2-layer construction on this 1/2 zip. LIFA Merino MIDWEIGHT delivers all the breatha

Scored Product Attributes

7
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Over 1 - 2 Year

Good To Know - Brand Attributes

icon representing Social criteria factor Social

This brand offers discounts for first responders, including police, firefighters, and EMTs.

This brand offers discounts for medical professionals to support their contributions to healthcare.

This brand provides discounts for active military members and veterans.
6
in Men's Base Layers

Smartwool Men's Merino 250 Base Layer Bottom | Smartwool

Experience benefits of Merino 250 men's base layer pants. Heavy Merino wool blend, enhanced fitting for functionality in cold weather. Free returns.

Scored Product Attributes

6
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Merino Wool

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Over 1 - 2 Year

Good To Know - Brand Attributes

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Made in Vietnam
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