Patagonia BrimmerThe Patagonia Brimmer provides 40+ UPF sun protection and instant shade for full days outside. It works just as well for a hike as it does on the river—and it floats if you take an accidental swim. Made in a Fair Trade Certified™ factory.Style No. 33521 UPF Protection - Main fabric is built of 100% recycled polyester stretch ripstop that's treated with a durable water repellent (DWR) finish made without intentionally added PFAS, and 40+ UPF sun protection and a wide brim help keep the sun off you Mid-Crown Fit - Mid-crown fit with a 3" brim; available in two sizes Buoyant Brim - Foam brim and lightweight construction keep this hat afloat if it ends up in the river Chin Strap - Adjustable drawcord chin strap keeps the hat in place, even in windy conditionsQuick-Wicking Internal Sweatband Lightweight, low-profile sweatband offers moisture and temperature management