The 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. UPF ProtectionMain 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 FitMid-crown fit with a 3" brim; available in two sizes Buoyant BrimFoam brim and lightweight construction keep this hat afloat if it ends up in the river Chin StrapAdjustable drawcord chin strap keeps the hat in place, even in windy conditions Quick-Wicking Internal SweatbandLightweight, low-profile sweatband offers moisture and temperature management