The Columbia Sportswearâ⢠Adults' Bora Boraâ⢠Booney II Hat features Omni-Shadeâ⢠UPF 50 sun protection to help shield you from UV rays, and an Omni-Wickâ⢠sweatband and mesh to wick away moisture to help keep you cool and dry. Made from 100% textured nylon poplin material with polyester lining, the hat has an adjustable chin strap with a draw cord and toggle. Columbia Sportswear Adults' Bora Bora Booney II Hat Delta - Men's Hunting/Fishing Headwear at Academy Sports