Unbelievably Soft Underwear

You know Smartwool® apparel makes an incredible layering system. But we have a question for you—are you messing up that perfect system with the wrong underwear? When it comes to layering with Merino, the most important layer is the first one you put on—your underwear. By wearing Merino wool underwear, you have a system that helps keep you thermoregulated and resists odors. While wool underwear may be the last layer on your mind, it is the most important one you put on.

SHOP Women’s Underwear
SHOP Men’s Underwear

Men's Underwear

MERINO 150

  • + 100% Merino next to skin
  • + Merino-lined, wide elastic waistband
  • + Manages sweat
  • + Odor-resistant
  • + Helps regulate temperature

MERINO 150 SPORT

  • + Engineered Merino + polyester blend
  • + Quick dry time
  • + Double front panel for extra support
  • + Manages sweat
  • + Breathable

Women's
Underwear and Bras

Seamless Underwear and Bras

Smartwool’s Seamless bras come in two different styles—racerback and strappy. They both feature engineered knit cups that are designed to provide shape and lift and a seamlessly knit Merino wool interior for enhanced next-to-skin comfort. The wide straps on the racerback bra provide additional support, while the removable cups in the strappy bra provide additional coverage.

  • + 100% Merino next to skin
  • + Merino-lined, wide elastic waistband
  • + Quick Dry
  • + Breathable
  • + Manages sweat
  • + Odor-resistant
  • + Regulates Body Tempature