Functional base layer specifically designed to keep you cool and dry while exercising indoors or in warm conditions. ProCool mesh panels on sides allow your body to stay cool. Excellent moisture transportation works to keep you comfortable. Ergonomic fit and design. Antimicrobial Tri Antimicrobial Performance chamois. Slim lightweight fit. Antimicrobial. Body: 95% polyester, 5% spandex. Machine wash warm, tumble dry low.