Zentek Foldable rain/cooling hat. One size. Has adjustable closure for all head sizes. Lightweight. Compact for packing. Covers the back of the neck. Front brim snaps up for unobstructed view. Adjustable Chin strap for wind and blowing rain. . Is lined with our Temperature regulating material. Front brim is 4 inches wide. Back brim extends 6 inches in length. Available in multiple colors and pattern. Choose your main color or combination.