The EVOLUTION 152 Helicopter Helmet is an innovative design that features a lightweight shell construction using fiberglass and high strength kevlar. The use of these materials enables the EVOLUTION to be extremely light and incredibly resilient to penetration and impact. The EVO Helmet adapts to your needs with the Quick Release Communication Cable System & NVG Battery Mount. Easily switch your communication cable between different aircraft & no more need for velcro to attach NVG Batteries. The EVO 152 is a single visor helmet and comes with your choice of Clear, Gray or Yellow outer visor.