This UV top is made from the performance fabric, Meryl, a fabric created for its feel against your skin, UV protection, light weight, breathability, wicking, movement with your body and durability. There are unlimited uses for this top. You can buy it in a neutral color and throw it over your favorite sun dresses for UV protection. Or, you can put it over your favorite tennis outfit when you're finished playing. Besides giving you sun protection, it will help cool you down. It can also be worn under an open neck top to give coverage for the decollete without adding bulk around the waist. The extra-long sleeves have thumb slots and can be worn to protect your hands.