Features-Outer-shell-Fibreglass-ACF-Advanced-Composite-Fibre-Outer-shell-sizes-2-shell-sizes-Ventilation-System-Air-vents-&-rear-extractors-Weight-1-450-g-50-tg-M-Fabric-Dry-Comfort-with-sanitizing-treatment-Internal-padding-Removable-&-washable-Visor-Street-12-clear-visor-in-non-scratch-polycarbonate-Visor-Mechanism-XQRS-Extra-Quick-Release-System-visor-removal-&-replacement-without-tools-in-just-a-few-seconds-Fastening-System-buckle-with-micrometric-adjustment