The outdoor hat is designed to protect the strong sun light activity like hiking, fishing and beach etc. With main fabric function on waterproof and UPF 50+, there are also breathable and good wicking fabric used on sweatband and mesh parts to make sure ventilation and comfortable dry-fit on head. The head size is adjustable with elastic drawstring or easy buckle to help one size fits all. Some parts on the hats like the back flap, mesh and sweatband is designed to be removable that it is more convenient for flexible combine and keep clean dry touch to the skin. The outdoor hat is also foldable which makes it easy for carrying and saving space in package.