100% Polyester lightweight button up fishing style shirt with Solar-Factor UPF 40+ UV Protection is functional and stylish for any use. Fit & Design: Relaxed fit for extra comfort and mobility, if you think you are between sizes best to buy the smaller size Soft and Comfortable Lightweight Polyester Dobby Pongee 360 Degree Venting on Front and Back Dual Chest Pockets with Drain Holes and Gear Loop Sunglass Holder and Cleaner Rod Holder Additional Details: Machine wash cold with like colors, close hook and loop tape before washing, only non-chlorine bleach when needed, tumble dry low, remove promptly, cool iron if needed