Be ready for whatever the weather in the Sunday Afternoons® Ultra Adventure Storm Hat. Featuring 100% waterproof seam-sealing technology, this hat is easy to fold, stash in your pack, and perfect for backpacking or hiking in the rain. It breathes, fits comfortably, and has a chin strap so it stays put in high winds. Wherever your adventures take you, this hat will keep you dry. Fit Standard fit Adjustable sizing Technology 100% waterproof Integrated moisture wicking mesh liner Bluesign® approved main body fabric Design Breathable fabric Fully Seam Taped Reflective details Reinforced brim structure Additional Details 3 1/4" Reverse Clamshell Brim and 6" Neck Cape Patent pending