The LS2 MX470 Subverter full face motocross helmet is a game changer in the world of high performance MX helmets. LS2 uses their proprietary Kinetic Polymer Alloy (KPA) for the shell. It's lightweight, offers just a little flex as part of the energy management system, and is ultra strong. It tests as well as the best composite materials in the world and is the perfect material for a racing helmet. LS2 uses 3 shell sizes for the Subverter to assure that you get the smallest, lightest shell possible for your specific size. In fact, this is one of the smallest shells in the business. But things get even better. The internal, energy absorbing EPS uses in-molding technology, attaching an internal, polycarbonate protective layer between the dual-density EPS and the comfort padding. This layer is slick and works just like your scalp. It allows the comfort liner just a bit of slippage to help offset and diminish rotational energy and dramatically improve the dissipation of energy absorbed by the EPS. In other words, it takes energy management to a new, better level. We call it the Synthetic Slip System. The shell has 35 separate ventilation ports, with channeled EPS to allow the maximum possible airflow, keeping the rider cooler in the heat of competition. The comfort padding uses LS2's thermo-weld system, reducing the need for glues. It allows the fabric to be more breathable and comfortable. The liner is removable and washable, so you can keep it as fresh as new. The eye port is wide, allowing for a full field of vision, and accommodates virtually any brand of goggles. We use a metal security plate triangle to reinforce the chinstrap rivet, just as an added touch. The LS2 MX470 Subverter changes the rules of off-road racing and gives you an edge against the competition. Meets or exceeds DOT and ECE certification.