Smartwool Mens PhD Wind Boxer Brief

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When it's cold and windy outside, you need a secret weapon on the inside: The PhD Wind Boxer Brief by Smartwool. The body of the brief is made with a keep-things-warm Merino-polyester blend that efficiently moves sweat away from your skin. Merrow seam construction is soft and comfy next to your skin. But what will make your day is a windproof panel that cuts frigid air from the front, right where you need it.

This item is non-returnable.


  • Slim Fit
  • Mid-Rise
  • Warmer Merino/polyester blend helps fabric move moisture, dry quickly, and maintain its shape in high-sweat activities in colder weather
  • Windproof front panel for increased protection from the elements (1CFM Rating)
  • Minimal Merrow seam construction provides superior durability and is soft against skin
  • Jacquard logo elastic waistband with wool terry loop next to skin
  • Size M inseam: 4.75"
  • Body: 56% Merino Wool, 44% Polyester
  • Mesh: 54% Merino Wool, 46% Polyester
  • Front Wind Panel: 100% Polyester