Mcdavid Sport boxers nylon Our products will provid in protecting and helping reduct the incidence of injury Supports your return to activity and enhance performance Made using the highest quality and most innovative technology and materials Sport boxer Dissipates body heat stain resistant, colorfast, shrink resistant Hydravent Moisture Management Technology enhances heat control, comfort, and performance 85%nylon/15%spandex, 6.7 oz. per square yard