The Chill-Its 6688 Cooling Hi-Vis Sun Shirt with UV Protection is a Type R Class 2 shirt designed for enhanced visibility and breathable comfort. This sun shirt features evaporative technology for immediate cooling and UPF 50+ protection against the sun's harmful rays when working outside. Built with a performance fit, this long sleeve sun shirt is designed with a stretch fabric that provides easy mobility and unrestricted movement. Featuring moisture-wicking technology, an anti-odor treatment and breathable mesh paneling in the underarms and back, this long sleeve sun shirt will keep workers comfortably fresh, cool and dry all day. Simply wet the cooling shirt to activate instant cooling relief that lasts for hours. When activated, this long sleeve shirt is lightweight and refreshing for even the hottest days of the year. This hi-vis long-sleeve shirt is ideal for anyone requiring Type R, Class 2 apparel, particularly those seeking cool comfort when working in the heat. It can also be used to keep cool and reduce the risk of heat stress while fishing, gardening, hiking, playing sports and more.