The future heavyweight among wicking baselayers and a four-season champ for active lifestyles.

Loosely shaped to fit closer than other activewear boxer contenders the Mountain Hardwear eXtend Featherweight Boxer is the undisputed champion of wicking comfort thanks to a polyester microfiber knit material treated with a VisaEndurance finish that facilitates moisture management while minimizing odor. The Mountain Hardwear eXtend Featherweight Boxer is a superb four-season baselayer that fits in perfectly with hiking biking camping climbing skiing and mountaineering.