The AIRFRAME™ ATX HELMET is our law enforcement focused ballistic helmet—designed to offer the same advantages of our original AirFrame™ helmet while meeting IIIA ballistic requirements. The unique overlapping shell design of the AirFrame™ creates an integrated vent that provides passive cooling and can reduce the damaging effects of explosive blast waves. Each AIRFRAME™ ATX HELMET features an Ops-Core® H-Nape Head-Loc™ retention system for unmatched stability, comfort, and ease of adjustment. Up armoring the AirFrame™ with ballistic ear or face protection is simple and fast (see our AIRFRAME™ EARS™ and AIRFRAME™ CHOPS™ for more info). All helmets and components are compatible with common ear-pro systems like Peltors® and Sordins®. Patented, see WWW.LWPATENTS.COM. Made in the US from US materials.