Fully adjustable using the fit-band dial, the Viper helmet retention system and netting is designed to maximize comfort, stability, air circulation, and protection during long periods of wear KIT INCLUDES: Impact Liner Net (Black) Dial Fit Band (Black) Comfort Pad Set Comfort Retention System (Black or Tan499) Hardware Kit *Colors of interior MSS components (net & fitband) may vary. May not be as shown FEATURES: Superior Comfort & Fit - Engineered to comfortably fit a wide range of head shapes and sizes—adjustable liner and suspension system is optimized for impact protection, comfort, and extended-wear One-Handed Adjustment - Tighten or loosen the dial fit band and comfort pads around the circumference of the head with a simple turn of he dial fit ratchet mechanism Stability - The 4-point retention system has a height-adjustable nape pad to further stabilize the system when using NVGs Ventilation and Cooling - An adjustable crown net wicks perspiration and suspends the helmet shell on the wearer’s head for freer air-flow and circulation Impact Protection - Impact liner is made of a durable, low-profile material that exceeds U.S. Army ACH impact standards SPECIFICATIONS: Sizes Available Small Medium Large Extra Large Color Options Black, Tan 499 Compatibility Compatible with Viper full, mid and high cut helmets NOT Compatible with Cobra helmet NOT Compatible with Caiman helmets Compatible with Viper Front Mount Compatible with Viper Interlocking Long Rails Compatible with Viper Standalone Long Rails Testing & Requirements Exceeds U.S. Army ACH impact standards Product Downloads Spec Sheet