Gp-500-is-a-carbon-fibre-racing-helmet-designed-for-the-fastest-racers-&-available-with-three-different-shell-sizes-Through-the-use-of-superior-materials-&-leading-edge-technology-Gp-500-is-bound-to-leave-its-mark-Every-detail-was-developed-through-the-joint-efforts-of-pilots-&-technicians-in-order-to-obtain-a-highly-performing-helmet-in-all-of-its-characteristics-including-a-type-tested-50-smoke-visor-suited-for-fitting-tear-off-sheets-&-with-a-built-in-visor-lock-an-integrated-Pinlock-reg-lens-an-integrated-windstopper-10-vents-&-an-emergency-cheek-pad-release-system-Inner-lining-is-highly-breathable-hypoallergenic-&-totally-removable-Indeed-this-helmet-is-an-outstanding-product-in-terms-of-safety-performance-&-comfort-Features-HPC-High-performance-composite-1200gr-50gr-3-shell-sizes-Front-vents-Top-Vent-Chin-guard-vents-Rear-&-side-extractors-Removable-&-washable-inner-lining-Hypoallergenic-Double-D-Ring-Stop-wind-Fs-Pinlock-in-the-box-Nose-cover-in-the-box-Visor-50-light-tinted-homologated-Racing-visor-2D-Tool-less-quick-release-Scratch-resistant-Uv-resistant-Ready-for-tear-off-Block-system