Men's Underwear › Smartwool

Smartwool Merino 250 Baselayer 1/4 Zip - Women's Black Extra Large SW016373001-XL

Smartwool Merino 250 Baselayer 1/4 Zip - Women's Black Extra Large SW016373001-XL. 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... 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 Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Small SW016355092-S

Smartwool Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Small SW016355092-S. 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 1/4 Zip - Men's Black Small SW016355001

Smartwool Merino 250 Baselayer 1/4 Zip - Men's Black Small 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 Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Extra Large SW016355092-XL

Smartwool Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Extra Large SW016355092-XL. 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... more

Smartwool Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Medium SW016355092-M

Smartwool Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Medium SW016355092-M. 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 Crew - Women's Charcoal Heather Extra Large SW016369010-XL

Smartwool Merino 250 Baselayer Crew - Women's Charcoal Heather Extra Large SW016369010-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... more

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

Smartwool Merino 250 Baselayer Crew - Women's Black Extra Small SW016369001-XS. 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 1/4 Zip - Women's Charcoal Heather Large SW016373010-L

Smartwool Merino 250 Baselayer 1/4 Zip - Women's Charcoal Heather Large SW016373010-L. 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... more

Smartwool Merino 250 Baselayer Bottom - Women's Small Twilight Blue Heather SW019242G75S

Smartwool Merino 250 Baselayer Bottom - Women's Small Twilight Blue Heather SW019242G75S. 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 Merino 250 Baselayer Bottom - Women's Extra Small Twilight Blue Heather SW019242G75XS

Smartwool Merino 250 Baselayer Bottom - Women's Extra Small Twilight Blue Heather SW019242G75XS. 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 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 Merino Sport 120 Long Sleeve - Men's Charcoal Heather Extrta Large SW016546010XL

Smartwool Merino Sport 120 Long Sleeve - Men's Charcoal Heather Extrta Large SW016546010XL. 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 ZQ-certified Merino wool... more

Smartwool Merino Sport 120 Short Sleeve - Men's Charcoal Heather Extrta Large SW016544010XL

Smartwool Merino Sport 120 Short Sleeve - Men's Charcoal Heather Extrta Large SW016544010XL. Its super-light performance fabric-a blend of ZQ-certified Merino wool with Tencel performance fabric-will help keep you cool when your intensity amps up and... more

Smartwool Merino Sport 120 Long Sleeve - Men's Charcoal Heather Large SW016546010L

Smartwool Merino Sport 120 Long Sleeve - Men's Charcoal Heather Large SW016546010L. 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 ZQ-certified Merino wool with... more

Smartwool Merino Sport 120 Long Sleeve - Men's Charcoal Heather Medium SW016546010M

Smartwool Merino Sport 120 Long Sleeve - Men's Charcoal Heather Medium SW016546010M. 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 ZQ-certified Merino wool with... more

Smartwool Merino Sport 120 Long Sleeve - Men's Charcoal Heather Small SW016546010S

Smartwool Merino Sport 120 Long Sleeve - Men's Charcoal Heather Small SW016546010S. 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 ZQ-certified Merino wool with... more

Smartwool Merino Sport 120 Short Sleeve - Men's Charcoal Heather Large SW016544010L

Smartwool Merino Sport 120 Short Sleeve - Men's Charcoal Heather Large SW016544010L. Its super-light performance fabric-a blend of ZQ-certified Merino wool with Tencel performance fabric-will help keep you cool when your intensity amps up and its... more

Smartwool Merino Sport 120 Short Sleeve - Men's Charcoal Heather Medium SW016544010M

Smartwool Merino Sport 120 Short Sleeve - Men's Charcoal Heather Medium SW016544010M. Its super-light performance fabric-a blend of ZQ-certified Merino wool with Tencel performance fabric-will help keep you cool when your intensity amps up and its... more

Smartwool Merino Sport 120 Short Sleeve - Men's Charcoal Heather Small SW016544010S

Smartwool Merino Sport 120 Short Sleeve - Men's Charcoal Heather Small SW016544010S. Its super-light performance fabric-a blend of ZQ-certified Merino wool with Tencel performance fabric-will help keep you cool when your intensity amps up and its... more

Smartwool Merino Sport 120 Short Sleeve - Men's Charcoal Heather 2XL SW016544010XXL

Smartwool Merino Sport 120 Short Sleeve - Men's Charcoal Heather 2XL SW016544010XXL. Its super-light performance fabric-a blend of ZQ-certified Merino wool with Tencel performance fabric-will help keep you cool when your intensity amps up and its... more

Smartwool Classic Thermal Merino Base Layer Crew - Men's K66 Winter Moss Heather Large SW016349K66L

Smartwool Classic Thermal Merino Base Layer Crew - Men's K66 Winter Moss Heather Large SW016349K66L. Smartwool updated this 100percent Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder... more

Smartwool Classic Thermal Merino Base Layer Crew - Men's K66 Winter Moss Heather Medium SW016349K66M

Smartwool Classic Thermal Merino Base Layer Crew - Men's K66 Winter Moss Heather Medium SW016349K66M. Smartwool updated this 100percent Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder... more

Smartwool Classic Thermal Merino Base Layer Crew - Men's K66 Winter Moss Heather Small SW016349K66S

Smartwool Classic Thermal Merino Base Layer Crew - Men's K66 Winter Moss Heather Small SW016349K66S. Smartwool updated this 100percent Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder... more

Smartwool Classic Thermal Merino Base Layer Crew - Men's K66 Winter Moss Heather Extra Large SW016349K66XL

Smartwool Classic Thermal Merino Base Layer Crew - Men's K66 Winter Moss Heather Extra Large SW016349K66XL. Smartwool updated this 100percent Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics.... more

Smartwool Classic Thermal Merino Base Layer Crew - Women's G75 Twilight Blue Heather Large SW016369G75L

Smartwool Classic Thermal Merino Base Layer Crew - Women's G75 Twilight Blue Heather Large SW016369G75L. Smartwool updated this 100percent Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics.... more

Smartwool Classic Thermal Merino Base Layer Crew - Women's G75 Twilight Blue Heather Medium SW016369G75M

Smartwool Classic Thermal Merino Base Layer Crew - Women's G75 Twilight Blue Heather Medium SW016369G75M. Smartwool updated this 100percent Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics.... more

Smartwool Merino Sport Moto Legging - Women's K15 North Woods Large SW016337K15L

Smartwool Merino Sport Moto Legging - Women's K15 North Woods Large SW016337K15L. Our Women's Merino Sport Moto Tight uses a 4-way stretch fabric combined with a Merino Sport 150 lined waistband and gusset for added sweat-wicking and quick dry times -... more

Smartwool Intraknit Merino Thermal Legging - Women's 001 Black Medium SW016659001M

Smartwool Intraknit Merino Thermal Legging - Women's 001 Black Medium SW016659001M. Made with our Intraknit technology for enhanced insulation and ventilation to amplify movement and featuring a flattering high-rise waist you'll never want to break a... more

Smartwool Intraknit Merino Thermal Legging - Women's 001 Black Extra Small SW016659001XS

Smartwool Intraknit Merino Thermal Legging - Women's 001 Black Extra Small SW016659001XS. Made with our Intraknit technology for enhanced insulation and ventilation to amplify movement and featuring a flattering high-rise waist you'll never want to... more

Smartwool Intraknit Thermal Merino Base Layer Bottom - Women's 960 Black-White Large SW016828960L

Smartwool Intraknit Thermal Merino Base Layer Bottom - Women's 960 Black-White Large SW016828960L. 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 for... more

Smartwool Intraknit Thermal Merino Base Layer Bottom - Women's 960 Black-White Medium SW016828960M

Smartwool Intraknit Thermal Merino Base Layer Bottom - Women's 960 Black-White Medium SW016828960M. 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 for... more

Smartwool Intraknit Thermal Merino Base Layer Bottom - Women's 960 Black-White Small SW016828960S

Smartwool Intraknit Thermal Merino Base Layer Bottom - Women's 960 Black-White Small SW016828960S. 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 for... more

Smartwool Intraknit Thermal Merino Base Layer Bottom - Women's 960 Black-White Extra Large SW016828960XL

Smartwool Intraknit Thermal Merino Base Layer Bottom - Women's 960 Black-White Extra Large SW016828960XL. 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 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 Intraknit Merino 200 Crew - Men's Black/White Medium SW019286960-M

Smartwool Intraknit Merino 200 Crew - Men's Black/White Medium SW019286960-M. 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 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 Intraknit Merino 200 Crew - Women's Black/White Medium SW019284960-M

Smartwool Intraknit Merino 200 Crew - Women's Black/White Medium SW019284960-M. 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