Sitka Tech Tee - The Tech Tee wicks sweat and dries fast to keep you at the top of your game on the hottest days. Built with fabric that is lighter than air but packed with UPF 50+ to protect you from harsh rays. Ultra-light fabric: 100% polyester Sweat wicking and quick drying to keep you cool UPF 50+ sun protection Polygiene Odor Control Technology reduces odor Smooth flatlock seams Slight drop hem for added coverage Forward shoulder seams for comfort while wearing a pack Style: 600533