Nexx Y.10 HelmetPerfect for city scooting and commuting, the Y.10 helmet from Nexx has a simple aesthetic and lightweight design. The Y.10 helmet features polyfusion shell technology making it compact, comfortable and highly impact resistant. The adjustable face shield and drop down sun visor provide unbeatable field of vision and ample eye protection. In addition to the three-quarter helmet style, the Y.10 has a large upper vent and easy-flow channels in 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. to keep you cool!Shell: Polyfusion shell technology Compact and comfortable shell with high impact resistance 2 shell sizes: 2XS-LG, XL-2XL Shield: Clear face shield included Dark-tinted drop-down sun visor Ventilation: Large upper vent Easy flow channels in EPS liner for fresh air circulation Interior: Anti-sweat, anti-allergenic interior and cheek pads Liner is filly removable and washable Prepared for universal communication systems up to 45mm audio sets Safety: DOT and ECE 22.06 ECE 22.06 is a helmet safety rating that extends and increases the testing requirements of ECE 22.05 (with 22.05 being a more modern, more comprehensive European alternative to DOT). With 22.06, 12 additional impact points are analyzed (now totaling 18) and impact speed is increased (from 7.5 to 8.2 m/s). Unlike DOT, every ECE helmet model must actually be tested by an independent lab before it receives 22.06 certification. certified Micrometric buckle fastener