Trekmates Atacama Unisex Sun Hat - with stowable legionnaire's flap, built in mosquito repellent and UPF50 sun protection. The Atacama cap comes with a packable triple-fold peak design. The zip-away legionnaire's flap protects your neck from the sun, while quick drying midge and mosquito-repellent supplex Nylon fabric keeps the bugs away. 100% Polyamide Supplex outer Mesh lining for high breathability Packable baseball-style cap with 7cm triple-fold peak Triple-fold peak makes it easier to stow away when not in use Zip-away legionnaire's flap for sun protection Wicking brow band Stuff sack included Machine washable Midge and mosquito-repellent outer fabric, guaranteed for five washes UV rating: UPF 50 + Weight: 90g SIZING S/M= 56-57cm, L/XL=59-60cm