Constructed from fast dry fabric, this Evolution Fast Dry Brimmed Hat delivers comfort over extended periods of activity or when exposed to sunlight. An ultraviolet protection rating of 40 and a wide brimmed edge supplies enhanced sun protection while a popper fastening secures the brim to the hat when not required. Side vents provide ventilation to keep you cool and comfortable. Adjust the chin strap to create a secure fit and prevent it flying off during high winds.