Columbia Bora Bora II Booney Sun Hat - UPF50 (Sun Protection 50) ALWAYS SUNNYMade for the outdoor enthusiast, this sun hat features built-in UPF 50, an ultra-sweat-wicking headband, and a mesh vent panel for days on the water. Omni-Shade UPF 50 protects you from the sun’s harmful rays Omni-Wick sweatband and mesh venting actively breathe and pull moisture away from your skin to keep you cool Adjustable drawcord and toggle at back Uses: Hiking, Casual, Travel, Fishing, Walking...endless possibilities! FABRIC Omni-Shade 100% textured nylon poplin on top, sides and brim Omni-Wick sweatband and mesh vents, which are non UPF