Lightweight, strong, advanced polymer alloy.Ultra High-flow 15 port Ventilation system.Glove friendly, lightweight, 3-point break-away screws.Adjustable ultra hi-flow peak reduces drag at high speed.Stainless Steel Double D-ring buckle.Dual density EPS liner.Extended rubber nose frost & roost guard.Rear diffuser to disperse impact load to compatible neck braces.Sternum Pad – Provides added protection of the chin, jaw and sternum.Ultra High-flow ventilation system for maximum air exchange.Integrated, adjustable, removable, breath-box-ready tabs.Hygienically-treated, removable, washable, moisture-wicking comfort liner.