Keep pace with thermometer-busting temperatures in the Mens PhD Wind Boxer Brief from Smartwool. A windproof front panel cuts frigid air. The rest of the brief is made with a keep-things-warm Merino-polyester blend that efficiently moves sweat away from your skin. The fabric dries quickly when your workout’s done, so these briefs are always ready. Merrow seam construction ensure next-to-skin softness.