1. Lightweight, multi-impact, ventilated liner with repositionable EPP impact pads and LDV closed-cell comfort foam that is not affected by temperature, altitude, or moisture 2. Gives helmet 4x more stability than standard issue ACH helmet suspension / retention products 3. Designed for use with headband style COMMs – fitband quickly detaches to allow convenient donning and doffing of headsets with internal top headbands