The Elixir Sports Youth Junior Kids 1 Pair Sun Protection Arm Cooling Sleeves Arm Cooler Golf Cycling Camping Hiking Baseball 1 Pair/Set, UV Protection: 99.8%, High Tech 3D Weaving Design Cooler than Bare Skin. Perfect for All Outdoor & Indoor Activities even Work-space Newly Designed for Kids Youth Junior Three- Dimensional (3D) Weaving Design to make more comfortable than others. High Performance Fabric: Fast Sweat Kick-away & Fast Dry