Vietnam Shooter's 2" Short Brim Boonie Cover - Olive Drab Boonie Hat -Govt Issue This Vietnam Shooter's Short Brim Olive Drab Boonie Cover is made from a durable cotton ripstop material that protects you from the sun. The 2" brim blocks sunlight from your eyes and the material keeps you cool on hot days while providing a good range of view to fire your weapon. Made by US Military government contractor. Made in USA to military specs. Features: Vietnam Shooter's 2" Short Brim Olive Drab Boonie Cover Color: Olive Drab 4 Screened Side Vents 50/50 Nylon and Cotton Ripstop Adjustable Chin Strap For Secure Comfort Hot Weather, Type II Hat Brim Length: 2″ Inches Branch Loops Around Hat For Camouflage (Leaves & Branches) Made in USA to Military Specifications Sizing Chart: Head Size Hat Size Head Circumference Small 7 21.7”-22” Medium 7 ¼ 22.4”-22.8” Large 7 ½ 23.2”-23.6” Extra Large 7 ¾ 24”-24.4”