100% Nylon Button closure HANDY FEATURES–CAMEL CROWN mens fishing shirt features UPF 40+ sun protection fabric, which can effectively protect skins against harmful ultraviolet rays during outdoor activity, essential for any fishermen, hikers and outdoor enthusiasts. HIGH-QUALITY MATERIALS–Made of 100% nylon, this long sleeve shirt is moisture-wicking and quick-drying, keeping you dry and cool all day long. Also, it is effective against foreign objects scratching, lightweight and not easy to pilling. COMFORT & BREATHABILITY–This mens long sleeve hiking shirt features a mesh-lined vent at back, speeding up the movement of the sweat away from the sweaty part and bringing the ultimate breathability and comfort for you. CONVERTIBLE & CONVENIENT–Sleeves can be easlily rolled up and secured with a button tab for added versatility. Meanwhile, featured two chest utility pockets with velcro closure, convenient for quick access and provides you with great intimacy and privacy. VERSATILE–Prefect for climbing, exploring, hiking, running, fishing, camping and other outdoor activities and also working where you need some protection.