For hygienic purposes, underwear is nonrefundable. Sorry for being so mean!Over the year's world travelers, explorers and outdoor enthusiast have chosen Exofficio; boxer briefs. They dry quick. You can wash them and wear them the next morning. Exofficio has improved on these briefs. The 2.0 now has up to 4 times more breathable, 50% more moisture-wicking, and 25% more quick-drying compared to our original. You will love the snug fit of the Boxer Brief.89% Nylon / 11% Elastane4-way stretch for total range of motionFlatlock seams reduce chafing; Wide, comfortable waistband retains its shapeImproved anti-odor treatment stays fresher, longerAvg Wt. 17oz (89.9g).3" Inseam