Features Shell ECE 22.05 GR 1200 ± 50 KPA 3 Shells Long, Oval Comfort Removable and Washable Breathable Hypoallergenic Laser-Cut Foam Security Safety Sliding Structure Double D Ring Emergency Release System Reinforced Chin Strap Metal Security Plate Ventilation Channeled Ports Multiple Top Vents Chin Vent Exhaust Ports KPA A proprietary blend of polycarbonate, space age thermoplastics and additional materials specifically formulated by LS2, KPA (Kinetic Polymer Alloy) Offers ultra-light weight and high penetration resistance, but with some flexibility for the ultimate in energy dispersion. This special formula meets both ECE 22.05 and DOT requirements. Double D Ring This model uses a classic double D­?ring buckle system for a secure fit. Slide the strap through both D­?rings, and then wrap it over the first and through the second. Pull the strap until you have a snug fit that won t roll off. Emergency Release System The emergency release system allows emergency responders to remove the cheek pads from the helmet, allowing extra space to remove the helmet with minimal movement of a fallen rider s head and neck. It is best to have someone hold the helmet to keep it from moving as you remove the pads. Slide your finger into the red loop and pull carefully, slipping the pads free. Slide the cheek pads over the straps and pull them away from the helmet. Metal Security Plate This small metal triangle is an LS2 exclusive feature and reinforces the attachment of the chinstraps to the shell for extra strength.Note Please note that as long as nothing else is written in the article description, all helmets that have a visor as standard will be delivered with a clear one, even if it is shown differently.