Quick dry & lightweight fabric on the back combine with soft & stretch fabric on the front can wicks moisture away from the skin, and keeping you dry and comfortable all day. Design: 2 special hidden window design on wrist allows you to check your watch or fitness tracker anytime without pull the thumbhole off. Long-raglan sleeves with thumbhole can keep the sleeves in place and give extra coverage to stay safe in the sun. Zipper Pocket: Right side pocket with hidden zipper can keep your cash and keys safe, and holds 5.5" mobile phone for secure storage. Sun Protection: long sleeve pullover shirts provides UPF50+ sun protection for your body, neck, hand all-round protection from the sun's harmful UVA/UVB rays. Occasion: Baleaf long sleeve shirts great for workout, running,hiking, fishing, seaside,sailing, traveling, camping and any of your favorite outdoor activities.