Modeled after the classic military boonie hat, Frank Bee Adjustable Boonie Hat features an adjustable elastic cord, plastic cord lock, and chin strap for the perfect fit. This military hat can fit most with a hat size range of 6 ¾ to 7 ¾. Made of 55% cotton / 45% polyester material, these boonie hats are super comfortable and breathable with 4 screened side vents to keep you cool. Along with an internal map pocket, the military bucket hat is available in both camo and solid colors and is great for screenprinting and embroidery.