The EPIC Air Combat Helmet Liner System takes protection to a whole new level. EPIC Air features the unsurpassed level of impact protection you expect from a Team Wendy Zorbium helmet liner, with new features that greatly improve comfort, fit and stability. The design incorporates three main pads (front, rear and crown) for impact protection, an assortment of ergonomically designed comfort pads, and patent-pending Air Channeling technology to keep you cooler. EPIC Air also comes in a variety of cuts and sizes to fit any style of ground combat helmet and is compatible with all styles of communications headsets. The sizing for EPIC Air depends on your helmet cut. For all Standard coverage helmets, which typically feature earcups (ACH, ECH, MICH, LWH, PASGT) choose the standard Helmet Cut option and your appropriate size. For all other cuts (High-cut, Mid-cut, Gunfighter) choose the "Other High-Cut" option. *Although Team Wendy's EPIC Combat Helmet Liner System exceeds blunt impact protection requirements of the Advanced Combat Helmet (AR/PD 10-02), the system is not currently authorized through first article testing for use in U.S. Military Advanced Combat Helmets or U.S. Marine Lightweight Helmets.