DLP Tactical ImpaX Core Bump Helmet Size M/L Lightweight, non-ballistic bump helmet in mil-spec MICH 2001 ACH pattern Excellent alternative to heavier armored armored helmets when bullet resistance is not needed or for training/ simulation. Heavy duty nylon fiber shell exceeds ANSI requirements for impact protection M/L size fits 95% of users, adjustable mil-spec H-Nape suspension system is replaceable with OPS-Core Luxe Liner and Team Wendy Dial Liner ARC accessory rails and NVG night vision mount included Delta Black color