The OCP Boonie is authorized for Scorpion OCP Operational Camouflage Pattern (OCP) Uniform.  Military Boonie hats are also a staple for anyone in the field or just needing protection from the sun. When it is hot, soak them in water every chance you get and they will keep you cool and comfortable. Since they are constructed with a durable 65/35 poly cotton rip-stop material, they can certainly take a beating and make for the perfect outdoor head wear. Tru-Spec has made them adjustable so they work great whether you are a size small or 2XL. A toggle in the back keeps it where you need it. It will always fit and the quality is better than ever before!