The N21 embodies the perfection of a timeless classic into mini jet helmet. Expression of one s personality & satisfaction of an invaluable need for freedom of movement. With its fashion design & a trendy combination of materials, finishes & colors, it is ideal for urban scooter use & for “custom” riders. Nice, fun, light & easy. VPS (Vision Protection System): This advanced feature ensures that you have a clear & unobstructed view of the road, enhancing safety & visibility during your urban rides. Helmet Lock Ring: This feature offers a secure & hassle-free way to keep your helmet safely secured when you re not wearing it, providing peace of mind & convenience. Neck Roll: The inclusion of a neck roll in the N21 helmet contributes to both comfort & safety. It ensures a snug & secure fit around your neck, reducing wind noise & enhancing the overall riding experience. Features Lexan™ Polycarbonate outer shell in 2 sizes (XXS-M L-XL) 4 EPS sizes (XXS-XS S M.. .