This Sport - Tek rashguard tee is great for men who love outdoor activities like swimming, water sports, or team events. It's made of a 5.9 - ounce, 90/10 poly/spandex stretch jersey with PosiCharge technology. The UPF rating of 50 protects you from the sun. It has a trim, comfortable fit, and tag - free label. Raglan sleeves and underarm gussets make it easy to move around during any action.