The Elixir Sports 1 Pair Sun Protection Arm Cooling Sleeves Hand Cover Arm Cooler Golf Cycling Camping Hiking 1 Pair/Set, UV Protection: 99.8%, High Tech Weaving Design Cooler than Bare Skin. Perfect for All Outdoor & Indoor Activities even Work-space Newly Upgraded: No Needlework Inside & Knit Finishing - Extreamly Comfortable High Technology Weaving Design to make more comfortable than others. High Performance Fabric: Hi Cool - Fast Sweat Kick-away & Fast Dry