EVS T5 Grappler HelmetThe EVS T5 Helmet is constructed from a lightweight polycarbonate shell with oversized intake and exhaust ports for maximum airflow. The EPS liner Expanded polystyrene (EPS) is a rigid, energy absorbing foam. In the helmet industry, EPS is the most common means of energy management to protect the brain. Generic EPS is often referred to as Styrofoam (a trademarked name owned by the Dow Chemical Company). Premium helmet producers utilize multi-density EPS liners to balance comfort, safety and performance. is Eject compatible and features ventilation channels for increased breathability.Features: Dual density EPS impact liner for superior energy management Compression Halo impact protection system Specifically engineered polycarbonate impact shell Max Flow air intake/exhaust system for superior ventilation and comfort Fully compatible with all race collars Removable, washable, moisture wicking, anti-microbial liner Eject compatible DOT & ECE certified The ECE (Economic Commission for Europe) standard is quite a bit younger than the current DOT standard, and in many ways offers a more comprehensive battery of testing than its American cousin. ECE standards test for safety features that can contribute to avoiding an accident altogether, such as the optical quality of approved face shields and safety factors not directly related to impact, such as shell rigidity. Unlike the DOT, every ECE certified helmet model must actually be tested against the standard by an independent lab before it is available for sale with an ECE sticker.