Already in use by Military Special Operations Units and Tactical Law Enforcement, the ultra tough, patented SG-1 V-Cut was designed for Tactical Operations when the heat’s on. Slots allow for added circulation and ventilation for intense operations. Durable design meets ANSI safety and the military’s Vo Ballistic Test – MIL-PRF-31013, the rigorous 0.15 caliber ballistic impact test. Fits under all issued helmets.