Under Armour® lattened out the fibers and added some science to create a game-changing fabric that quickly pulls heat away from the skin-keeping you calm, cool, and crushing at max capacity. Iso-Chill® Polyester fabric helps disperse body heat, making it feel cool to the touch UPF 50+ protects your skin from the sun's harmful rays Material wicks sweat and dries really fast Articulated sleeves for unrestricted movement Loose Fit: fuller cut for complete comfort Imported Product Features: Fabric:Iso-Chill 100% Polyester Under Armour Men's UA Iso-Chill Brush Line Hoodie