These are performance boxer briefs for working out. Insanely soft, breathable all-over mesh material for superior ventilation No side or back seams for ultimate comfort 4-way stretch material moves better in every direction Material wicks sweat & dries really fast Odor control technology reduces odor in the underwear Performance elastic waistband Extended bottom hem lays flat & stays put—no rolling or riding up Main body made with at least 80% recycled polyester (excluding trims and embellishments) Fitted: Streamlined fit that’s not too tight or too loose.