Designed for performance, the Spectrum helmet is engineered to exceed street helmet standards for comfort, protection and weight. Spectrum's revolutionary and dynamic design features a seamless integration of three In-Mold EPS liners combined together. This unique structure improves ventilation and makes this racing machine extremely lightweight and comfortable.EPS In-Mold ConstructionIn-Mold technology allows Rudy Project to mold the outer polycarbonate shell directly during the injection phase of the expandable polystyrene (EPS) impact-absorbing foam. The result is a much stiffer structure that is impact resistant, extremely lightweight and allows for better ventilation. The combined action of the EPS structure, polycarbonate cap and exoskeleton creates resistance to the mechanical impact of an impact and dissipates the energy to prevent it from being transferred to the wearer's head.RSR 10 Retention SystemThe lightweight yet durable RSR 10 adjustment system provides a perfect fit, thanks to its circumferential structure and micro-metric (vertical/horizontal) adjustability for just about any position. - Details: - Adaptive Air Frame Band - Adjustment System: RSR 10 Adjustable Retention System - Helmet Construction: In-Mold Technology - Features: Fly Net - Test mark: EN 1078 - Closure system: Fastex click closure system - Intended use: road bike / cyclocross - Visor / visor: without - Weight: 220 g - Padding: removable and washable inner padding Ventilation openings - Number: 15 pieces.