Naska Arm Cooler Cooling Sleeves Yellowish Green Arm Sleeves, 1 Pair, N3-YW 1 Pair/Set, Ultimate UV Protection: UV-R, UV-A BLOCK 99.9%, UV-B BLOCK 99.4% Cooler than Bare Skin. Perfect for All Outdoor & Indoor Activities even Work-space Upgraded Non Slip Elastic Bands on Top & Bottom 3rd Skin Concept - Make more comfortable than others. Premium Fabric: Tactel 88%, Lycra 12% (Fast Sweat Kick-away & Fast Dry)