At first glance, the industry's highest UPF rating of 50+, even when wet, in our Men's PRO Stretch Shirt might seem like its standout feature. Until you put it on and it becomes apparent: This shirt is so light, it feels like you're hardly even wearing one. The main body is made from a stretchy, woven fabric that allows for enhanced comfort-even when making aggressive movements like casting for distance, poling, or back rowing the boat above a pod of risers. Underarm gussets increase your range of motion with zero restriction. The shirt's anti-odor finish means you'll get multiple wearings between washings and spend much less time dealing with laundry when you could be fishing. Hidden sunglass/cell phone cleaner in lower hem. Two chest pockets for easy storage. Athletic Fit significantly decreases wind flap. Specs UPF 50+ even when wet Enhanced comfort and mobility from stretchy, woven fabric Increased range-of-motion from underarm gussets Multiple wearings between washings from an anti-odor finish Hidden sunglass/cell phone cleaner in lower hem Back-of-hand coverage from thumbholes Two chest pockets for easy storage Anti-odor finish Athletic Fit significantly decreases wind flap Polyester/nylon/ spandex. Imported. Sizes S(34-36), M(38-40), L(42-44), XL(46-48), XXL(50-52).