ADVANCED TECHNOLOGY: Columbia Unisex Bora Bora Booney fishing hat features our signature wicking fabric with sweat-wicking capabilities and UPF 50 sun protection technology that helps shield you from 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 and in the sun.ADJUSTABLE FEATURES: It's equipped with an adjustable drawcord and toggle at the back for a fit that's adjustable and comfortable.SUN-DAY WEAR: This hat is essential for any sunny day outside for its wide, protective brim. Mesh vents are non UPFOMNI-WICK - The ultimate moisture management technology for the outdoors. Omni-Wick quickly moves moisture from the skin into the fabric where it spreads across the surface to quickly evaporate-keeping you cool and your clothing dry.