The SmartWool Women's PhD Seamless Thong may feature a barely-there cut, but its performance is anything but absent. Highly-breathable merino wool offers temperature regulation and naturally resists odors, while a wide elastic waistband provides a secure and comfortable fit. And to make these even more breathable, SmartWool added varied knit textures for extra ventilation.

  • Performance underwear for staying comfy while you get after it
  • Wool blend offers wicking, breathable comfort that resists odors
  • Reviews
  • Q & A

Great Quality

  • Familiarity: I gave it as a gift but have feedback to share
  • Fit: True to size

Got these for my girlfriend, and she had this to say: $30 for a thong may seem steep, but when you are hiking long distances, skiing all day, or otherwise working out, a quality thong that wicks is critical. These are the new go to pair.

Fit & Features

Learn more about the fit, features, and benefits of Smartwool PhD Women's Seamless Underwear. #gofarfeelgood