Men's Underwear › Smartwool › Wool › Underwear

Smartwool Merino 250 Baselayer 3/4 Bottom - Men's Black Extra Large SW016365001-XL

Smartwool Merino 250 Baselayer 3/4 Bottom - Men's Black Extra Large SW016365001-XL. 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... more

Smartwool Men's Merino Boxer Briefs, Black SKU - 831859

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 Men's Merino Boxer Briefs, Light Gray Heather SKU - 876622

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 Men's Merino Boxer Briefs, Black SKU - 261363

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 Boxer Boxed - Men's Deep Navy Medium SW0170070921-M

Smartwool Merino Boxer Boxed - Men's Deep Navy Medium SW0170070921-M. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports Men's... more

Smartwool Merino Boxer Boxed - Men's Deep Navy Small SW0170070921-S

Smartwool Merino Boxer Boxed - Men's Deep Navy Small SW0170070921-S. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports Men's... more

Smartwool Merino Boxer Boxed - Men's Deep Navy Extra Large SW0170070921-XL

Smartwool Merino Boxer Boxed - Men's Deep Navy Extra Large SW0170070921-XL. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Merino 250 Baselayer 3/4 Bottom - Men's Black Small SW016365001-S

Smartwool Merino 250 Baselayer 3/4 Bottom - Men's Black Small SW016365001-S. 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 3/4 Bottom - Men's Black Medium SW016365001-M

Smartwool Merino 250 Baselayer 3/4 Bottom - Men's Black Medium SW016365001-M. 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... more

Smartwool Men's Merino Boxer Briefs, Deep Navy SKU - 496415

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 Men's Merino Boxer Briefs, Light Gray Heather SKU - 456089

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 Men's Merino Boxer Briefs, Deep Navy SKU - 624530

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 Men's Merino Boxer Briefs, Black SKU - 714323

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 Men's Merino Boxer Briefs, Deep Navy SKU - 792309

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 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 Men's Merino Boxer Briefs, Deep Navy SKU - 897811

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 Men's Merino Boxer Briefs, Light Gray Heather SKU - 967400

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 Boxer Boxed - Men's Deep Navy Large SW0170070921-L

Smartwool Merino Boxer Boxed - Men's Deep Navy Large SW0170070921-L. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports Men's... more

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Medium SW0169960841-M

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Medium SW0169960841-M. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Large SW0169960841-L

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Large SW0169960841-L. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Small SW0169960841-S

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Small SW0169960841-S. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Extra Large SW0169960841-XL

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Extra Large SW0169960841-XL. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new... more

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Medium SW0169960841-M

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Medium SW0169960841-M. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Large SW0169960841-L

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Large SW0169960841-L. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Small SW0169960841-S

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Small SW0169960841-S. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Extra Large SW0169960841-XL

Smartwool Boxer Brief Boxed - Men's Medium Gray Heather Extra Large SW0169960841-XL. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new... more

Smartwool Merino Boxer Boxed - Men's Deep Navy Medium SW0170070921-M

Smartwool Merino Boxer Boxed - Men's Deep Navy Medium SW0170070921-M. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports Men's... more

Smartwool Merino Boxer Boxed - Men's Deep Navy Small SW0170070921-S

Smartwool Merino Boxer Boxed - Men's Deep Navy Small SW0170070921-S. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports Men's... more

Smartwool Merino Boxer Boxed - Men's Deep Navy Extra Large SW0170070921-XL

Smartwool Merino Boxer Boxed - Men's Deep Navy Extra Large SW0170070921-XL. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Merino Boxer Boxed - Men's Deep Navy Large SW0170070921-L

Smartwool Merino Boxer Boxed - Men's Deep Navy Large SW0170070921-L. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports Men's... more

Smartwool Boxer Brief Boxed - Men's Black Extra Large SW0169960011-001 BLACK-XL

Smartwool Boxer Brief Boxed - Men's Black Extra Large SW0169960011-001 BLACK-XL. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new... more

Smartwool Boxer Brief Boxed - Men's Black Large SW0169960011-001 BLACK-L

Smartwool Boxer Brief Boxed - Men's Black Large SW0169960011-001 BLACK-L. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports the... more

Smartwool Merino Boxer Boxed - Men's Black Extra Large SW0170070011-001 BLACK-XL

Smartwool Merino Boxer Boxed - Men's Black Extra Large SW0170070011-001 BLACK-XL. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new... more

Smartwool Merino Boxer Boxed - Men's Black Small SW0170070011-001 BLACK-S

Smartwool Merino Boxer Boxed - Men's Black Small SW0170070011-001 BLACK-S. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Merino Boxer Boxed - Men's Black Large SW0170070011-001 BLACK-L

Smartwool Merino Boxer Boxed - Men's Black Large SW0170070011-001 BLACK-L. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Merino Boxer Boxed - Men's Black Medium SW0170070011-001 BLACK-M

Smartwool Merino Boxer Boxed - Men's Black Medium SW0170070011-001 BLACK-M. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports... more

Smartwool Boxer Brief Boxed - Men's Black Large SW0169960011-001 BLACK-L

Smartwool Boxer Brief Boxed - Men's Black Large SW0169960011-001 BLACK-L. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new sports the... more

Smartwool Merino Boxer Boxed - Men's Black Extra Large SW0170070011-001 BLACK-XL

Smartwool Merino Boxer Boxed - Men's Black Extra Large SW0170070011-001 BLACK-XL. With a Merino-lined elastic waistband you'll experience maximum comfort all day long. No matter if you're hitting the trail for a three-day camping trip or trying new... more