A comfortable, breathable, packable hat made from the same fabric as our best-selling Everywhere Pants. This might be the perfect everyday hat. a Fabric Makeup: Durable 94% Nylon/6% Spandex Stretch Fabric + DWR a Water & Stain Resistant DWR (Durable Water Repellency) Finish a UPF (Ultraviolet Protection Factor) 40+ a Packable - Soft Brim for Easy Packing a Cooling Mesh Liner to Wick Away Sweat and Keep You from Over-Heating a Adjustable Webbing Strap with Buckle Closure to Dial in the Fit a One Size Fits Most