Chill-Its 6689 Cooling Long-Sleeve Sun Shirt features evaporative technology for immediate cooling and UPF 50+ protection against the sun's harmful rays when working outside. Simply wet the cooling shirt to activate instant cooling relief that lasts for hours. Built with a performance fit, this high-visibility sun shirt is designed with a stretch fabric for easy mobility and unrestricted movement. Moisture-wicking technology, an anti-odor treatment and breathable mesh paneling in the underarms and back keep workers comfortably fresh, cool and dry all day. Zippered pocket on chest adds storage for keys, cell phones and small items. Use to keep cool and reduce the risk of heat stress while working outside, fishing, hiking and more.