Ergonomic Fit: Designed with a special V-shaped thread-texture closure, our cooling arm sleeves adjust flawlessly around your wrist and forearm for a non-slip fit that wont lose its shape or cut off your circulationCooling Design: When youre spending time in hot, sunny environments, you need an athletic sleeve thats made for the job. Our cooling sleeves feature a breathable mesh construction that wicks away moisture while letting in the airflow you need to stay cool and dry.A Must for Sunny Days: Whether youre exercising, playing sports, going for a hike, or spending time in your garden, these sun-protection sleeves literally have you covered! Pop them into your pocket for easy carrying, then slip them on whenever the sun comes outUPF 50+ Protection: Crafted with a special nylon and spandex blend, our sunscreen fabric is ready to protect you from harmful UV rays! The soft material blocks out UVA and UVB rays without feeling stuffy, so you can enjoy all your favorite outdoor activities safelyOne Size Fits Most,Stretchy Weave: Our UV protection sleeves' seamless technology offers excellent durability and comfort. The soft, performance-ready material is elastic enough to contour to various arm shapes yet fits like a second skin, so it doesnt come loose during exercise