These arm sleeves are designed to provide both high-performance cooling and essential UV protection during outdoor activities. Made from advanced "Hi-Cool" moisture-wicking fabric, they help regulate body temperature by transferring sweat away from the skin for quick evaporation. The highly stretchable, one-size-fits-most design offers a snug, non-slip fit that provides light compression to reduce muscle fatigue while maintaining full range of motion. They are widely used for sports like cricket, cycling, and golf, effectively shielding the skin from harmful solar rays and preventing sunburn.