Technical Upgrades successor of the AGV K-4 New internal padding with 3D construction & enhanced comfort New skin-friendly fabrics which improve the comfort of the fit & reduce rubbing when putting on & or taking off the helmet Richer & more stylish internal padding Weight reduced by almost 100g Shell ACF (Advanced Composite Fibre) fibreglass Number of shells: 2 shell sizes Ventilation System: dynamic system with air vents & rear extractors Interior Fabrics: Dry-Comfortwith hygienic treatment removable & washable Visor Street 8 clear visor in non-scratch & anti-fog polycarbonate XQRS (Extra Quick Release System): visor removal & replacement without tools in just a few seconds. PVS (Perimetrical Visor Seal) Retention System buckle with micrometric adjustment Theft prevention ring on the strap