The AirFrame™ ballistic helmet sets the standards in protection, comfort, and modularity. Complete AirFrame™ helmets weigh less than complete ACH 2002 helmets while providing more coverage area. The AirFrame™ was developed with a mandate to dramatically reduce headborne weight while exceeding common frag threats. A complete medium AIRFRAME™ HELMET weighs only 2.30 lbs, and the large weighs a mere 2.55 lbs. 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™ 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. 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.