Black Poly/Cotton Army Ranger Cap Fatigue Hat Patrol Cap Rothco 9340 Rothco Fatigue Caps 9340 MSRP: $19.99 Rothco’s Military Style Fatigue Caps meet U.S. Military standards and are constructed of a durable cotton/polyester material that is comfortable yet rugged.The fatigue hat is available in sizes XS through Extra Large. MILITARY SURPLUS HEADWEAR SIZE CHART XSSMLXLHat Size6.5″6.75″6 7/8″7″7 1/8″7.25″7 3/8″7.5″7 5/8″7.75″Head Size Inches20 1/2″21 1/8″21 1/2″21 7/8″22 1/4″22 5/8″23″23 1/2″24″24 3/8″Head Size Centimeters52545556575859606162