Essential for outdoor adventures! This is the Horizon Hat from THE NORTH FACE, a highly popular choice. It offers UV care (UPF 15-30, UV protection rate of 85% or more) for peace of mind on sunny days, and a ventilation mesh panel around the head for comfort in warm weather. It comes with a removable chin strap, so you don't have to worry about it blowing away in the wind, making it a highly functional hat. It's thin, lightweight, and easy to carry. The size is M, which fits head sizes of 56-58 cm.