Rothco Woodland Camo Rip Stop Boonie Hat - 5817. This product is made of 100% cotton rip-stop material. Made to government specifications. Screened side vents. Branch loops. Chin straps. Perfect for fishing, hunting and everyday play. Made for durability. Approximate brim size: 2.5" - 3". Woodland Camouflage - Rip-stop boonie hat (cotton).