These tees stretch and move with you while you re swimming or during any water activity. Designed to combat UV rays and moisture, these breathable and quick-dry tees also have PosiCharge technology to lock-in colors and logos.; 5.9-ounce, 90/10 poly/spandex stretch jersey with PosiCharge technology; UPF rating of 50; Trim, comfortable fit; Tag-free label; Raglan sleeves; Underarm gussets