Columbia Sportswear Bora Bora Booney II Sun Hats 100% Textured Nylon Poplin Imported ADVANCED TECHNOLOGY: Columbia Men's Bora Bora Booney fishing hat Omni-Wick fabric for sweat-wicking capabilities and Omni-Shade UPF 50 technology that blocks out 98% of harmful UVA and UVB rays. HANDY FEATURES: This high-performance fishing hat features a mesh breeze-inducing vent to keep you cool and protected during long hours outside. ADJUSTABLE FEATURES: This men's fishing hat is equipped with an adjustable drawcord and toggle at back so it fits comfortably and snug. FIT: This men's fishing hat fits secure and comfortably for active days out on the water. Columbia's Men's Bora Bora Booney fishing hat is the perfect accessory to hot, long days out on the water. Omni-Shade UPF 50 sun protection Omni-Wick sweat band Adjustable Chin Strap Adjustable drawcord and toggle at back