Men's Underwear › Smartwool

Smartwool Intraknit Merino 200 Crew - Men's Black/White Extra Large SW019286960-XL

Smartwool Intraknit Merino 200 Crew - Men's Black/White Extra Large SW019286960-XL. Our Men's Intraknit Merino 200 Crew is a lightweight super-moveable top made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

Classic Thermal Merino Wool Crewneck Base Layer

Men's Smartwool Classic Thermal Merino Wool Crewneck Base Layer - Blue - Long sleeve t-shirts This base layer is made from breathable merino wool and features shoulder panels and flatlock seams to help improve functionality and prevent chafing. more

Intraknit Thermal Merino Wool Blend Quarter Zip Base Layer

Men's Smartwool Intraknit Thermal Merino Wool Blend Quarter Zip Base Layer - Green - Sweatshirts This base layer is made from a merino wool blend with 3D mapping for a near-custom fit and features superior ventilation for long-lasting dry comfort. more

Intraknit Thermal Merino Wool Blend Quarter Zip Base Layer

Men's Smartwool Intraknit Thermal Merino Wool Blend Quarter Zip Base Layer - Blue - Sweatshirts This base layer is made from a merino wool blend with 3D mapping for a near-custom fit and features superior ventilation for long-lasting dry comfort. more

Smartwool Men's Sparwood Crew Sweater, Black SKU - 391559

Every day can be filled with adventure with the Smartwool Men's Sparwood Crew Sweater. Whether that adventure is big or small, Smartwool thinks you should be comfortable for it. Their sweater uses a soft polyester and merino blend to help keep you... more

Smartwool Men's Sparwood Crew Sweater, Black SKU - 296371

Every day can be filled with adventure with the Smartwool Men's Sparwood Crew Sweater. Whether that adventure is big or small, Smartwool thinks you should be comfortable for it. Their sweater uses a soft polyester and merino blend to help keep you... more

Smartwool Men's Merino Boxer Briefs, Light Gray Heather SKU - 775429

Every epic adventure starts with a solid foundation, and the last thing you want to overlook is the first layer you put on. Ultra-comfy, responsibly sourced Merino next to skin helps regulate body temperature, manages sweat, and resists odors, whether... more

Smartwool Merino 250 Baselayer 1/4 Zip - Men's Black Medium SW016355001

Smartwool Merino 250 Baselayer 1/4 Zip - Men's Black Medium SW016355001. As one of our heaviest base layer tops and best base layers for cold weather this garment uses 100percent responsibly sourced Merino wool shoulder panels and a flatlock seam... more

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Small SW016261960S

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Small SW016261960S. This womens wool baselayer is perfect for a day of outdoor activity in cool to warm weather because it will help keep your body dry and comfortable and its fit wont slow... more

Smartwool Intraknit Merino 200 Crew - Men's Black/White Small SW019286960-S

Smartwool Intraknit Merino 200 Crew - Men's Black/White Small SW019286960-S. Our Men's Intraknit Merino 200 Crew is a lightweight super-moveable top made for all of your most extreme cold-weather activities. With Merino Sport yarns and gender-specific... more

Smartwool Merino 250 Baselayer Crew - Women's Black Small SW016369001-S

Smartwool Merino 250 Baselayer Crew - Women's Black Small SW016369001-S. We've updated this 100percent Merino wool fan-favorite with new color options and an enhanced fit to improve functionality while elevating aesthetics. The addition of shoulder... more

Smartwool Merino 250 Baselayer 1/4 Zip - Women's Black Small SW016373001-S

Smartwool Merino 250 Baselayer 1/4 Zip - Women's Black Small SW016373001-S. As one of our heaviest base layer tops and one of our best base layers for cold weather this garment uses 100percent responsibly sourced Merino wool shoulder panels and a... more

Smartwool Merino 250 Baselayer 1/4 Zip - Women's Black Medium SW016373001-M

Smartwool Merino 250 Baselayer 1/4 Zip - Women's Black Medium SW016373001-M. As one of our heaviest base layer tops and one of our best base layers for cold weather this garment uses 100percent responsibly sourced Merino wool shoulder panels and a... more

Smartwool Merino 250 Baselayer Crew - Men's Black Small SW016349001-S

Smartwool Merino 250 Baselayer Crew - Men's Black Small SW016349001-S. We've updated this 100percent Merino wool fan favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder panels eliminate top shoulder... more

Smartwool Merino 250 Baselayer Crew - Women's Black Medium SW016369001-M

Smartwool Merino 250 Baselayer Crew - Women's Black Medium SW016369001-M. We've updated this 100percent Merino wool fan-favorite with new color options and an enhanced fit to improve functionality while elevating aesthetics. The addition of shoulder... more

Smartwool Merino 250 Baselayer Bottom - Women's Large Twilight Blue Heather SW019242G75L

Smartwool Merino 250 Baselayer Bottom - Women's Large Twilight Blue Heather SW019242G75L. This Women's Base Layer from Smartwool has a new and updated fit that has an elastic covered waistband and a design that is sure to prevent chafing. And Merino is... more

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Extra Large SW016261960XL

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Extra Large SW016261960XL. This womens wool baselayer is perfect for a day of outdoor activity in cool to warm weather because it will help keep your body dry and comfortable and its fit wont... more

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Medium SW016261960M

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Medium SW016261960M. This womens wool baselayer is perfect for a day of outdoor activity in cool to warm weather because it will help keep your body dry and comfortable and its fit wont slow... more

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Large SW016261960L

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Large SW016261960L. This womens wool baselayer is perfect for a day of outdoor activity in cool to warm weather because it will help keep your body dry and comfortable and its fit wont slow... more

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Small SW016261960S

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Small SW016261960S. This womens wool baselayer is perfect for a day of outdoor activity in cool to warm weather because it will help keep your body dry and comfortable and its fit wont slow... more

Smartwool Ultralite Mountain Bike Short Sleeve Tee - Women's Charcoal Heather Medium SW0165900101-M

Smartwool Ultralite Mountain Bike Short Sleeve Tee - Women's Charcoal Heather Medium SW0165900101-M. Have your eye on the next kicker? Stoked to find the flow on your next ride? Then this shirt might be for you. With thoughtful details like a... more

Smartwool Merino 250 Baselayer 3/4 Bottom - Men's Black 2XL SW016365001-XXL

Smartwool Merino 250 Baselayer 3/4 Bottom - Men's Black 2XL SW016365001-XXL. Made from Merino wool these base layer pants offer breathable warmth by wicking sweat away from the body and by moving sweat from your swim trunks into your thong-styled feet.... more

Smartwool Merino 250 Baselayer Bottom - Women's Large Charcoal Heather SW019242010-L

Smartwool Merino 250 Baselayer Bottom - Women's Large Charcoal Heather SW019242010-L. This Women's Base Layer from Smartwool has a new and updated fit that has an elastic covered waistband and a design that is sure to prevent chafing. And Merino is an... more

Smartwool Intraknit Merino 200 Crew - Women's Black/White Small SW019284960-S

Smartwool Intraknit Merino 200 Crew - Women's Black/White Small SW019284960-S. Our Women's Intraknit Merino 200 Crew is a lightweight super-moveable top made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

Smartwool Merino 250 Baselayer Crew - Women's Black Extra Large SW016369001-XL

Smartwool Merino 250 Baselayer Crew - Women's Black Extra Large SW016369001-XL. We've updated this 100percent Merino wool fan-favorite with new color options and an enhanced fit to improve functionality while elevating aesthetics. The addition of... more

Smartwool Merino 250 Baselayer Bottom - Men's Large Charcoal Heather SW016361010-L

Smartwool Merino 250 Baselayer Bottom - Men's Large Charcoal Heather SW016361010-L. The technical benefits of 100percent Merino wool will help you keep your game at a high level for longer. And our heaviest weight wool fabric will help keep you warm... more

Smartwool Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Large SW016355092-L

Smartwool Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Large SW016355092-L. As one of our heaviest base layer tops and best base layers for cold weather this garment uses 100percent responsibly sourced Merino wool shoulder panels and a flatlock seam... more

Smartwool Merino 250 Baselayer Bottom - Women's Extra Large Twilight Blue Heather SW019242G75XL

Smartwool Merino 250 Baselayer Bottom - Women's Extra Large Twilight Blue Heather SW019242G75XL. This Women's Base Layer from Smartwool has a new and updated fit that has an elastic covered waistband and a design that is sure to prevent chafing. And... more

Smartwool Merino 250 Baselayer Bottom - Women's Medium Twilight Blue Heather SW019242G75M

Smartwool Merino 250 Baselayer Bottom - Women's Medium Twilight Blue Heather SW019242G75M. This Women's Base Layer from Smartwool has a new and updated fit that has an elastic covered waistband and a design that is sure to prevent chafing. And Merino... more

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Extra Small SW016261960XS

Smartwool Intraknit Merino 200 1/4 Zip - Women's Black/White Extra Small SW016261960XS. This womens wool baselayer is perfect for a day of outdoor activity in cool to warm weather because it will help keep your body dry and comfortable and its fit wont... more

Smartwool Intraknit Thermal Merino Base Layer Bottom - Women's 960 Black-White Extra Small SW016828960XS

Smartwool Intraknit Thermal Merino Base Layer Bottom - Women's 960 Black-White Extra Small SW016828960XS. These women's wool pants feature Merino Sport yarn to offer the power of Merino paired with the durability and fast dry times of polyester perfect... more

Smartwool Classic All-Season Merino Base Layer Long Sleeve - Men's Iron Heather Extra Large SW016952D361-XL

Smartwool Classic All-Season Merino Base Layer Long Sleeve - Men's Iron Heather Extra Large SW016952D361-XL. The year-round Men's Classic All-Season Merino Base Layer Long Sleeve is game for either. With the Core Spun technology they've wrapped... more

Smartwool Men's Merino Boxer Briefs, Fern Green SKU - 245776

Every epic adventure starts with a solid foundation, and the last thing you want to overlook is the first layer you put on. Ultra-comfy, responsibly sourced Merino next to skin helps regulate body temperature, manages sweat, and resists odors, whether... more

Smartwool Merino 250 Baselayer Crew - Women's Black Large SW016369001-L

Smartwool Merino 250 Baselayer Crew - Women's Black Large SW016369001-L. We've updated this 100percent Merino wool fan-favorite with new color options and an enhanced fit to improve functionality while elevating aesthetics. The addition of shoulder... more

Smartwool Men's Merino Sport Ultralite Long Sleeve Shirt, Charcoal Heather SKU - 304019

The athletic fit of Smartwool's Merino Sport Ultralite Long Sleeve Shirt complements the movements of your body. With comfort features like offset shoulder and side seams to help minimize chafing, this very light and soft tee is made with a blend of... more

Smartwool Men's Merino Sport Ultralite Long Sleeve Shirt, Charcoal Heather SKU - 129158

The athletic fit of Smartwool's Merino Sport Ultralite Long Sleeve Shirt complements the movements of your body. With comfort features like offset shoulder and side seams to help minimize chafing, this very light and soft tee is made with a blend of... more

Smartwool Men's Intraknit Thermal Merino Base Layer Crew Shirt, Black-White SKU - 135667

This minimalist-style crew is anything but insignificant. The Smartwool Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more

Smartwool Men's Intraknit Thermal Merino Base Layer Crew Shirt, Black-White SKU - 541106

This minimalist-style crew is anything but insignificant. The Smartwool Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and... more