The-helmet-ST-501-is-a-full-face-helmet-with-a-strong-racing-spirit-which-was-designed-in-two-shell-sizes-for-sporty-&-recreational-riders-alike-The-modern-lines-&-the-aerodynamic-design-make-summer-a-pleasure-thanks-to-the-ventilation-system-on-the-tarmac-This-ensures-optimum-interior-climate-control-in-every-situation-The-helmet-features-wind-deflectors-&-a-wide-inner-sun-visor-with-Pinlock-reg-inner-lens-so-you-can-afford-the-safety-you-need-The-lightness-&-protective-effect-merge-with-a-design-that-stands-out-in-Airoh-39-s-new-full-face-helmet-Features-EPS-inner-shells-with-four-different-densities-despite-the-low-weight-highest-safety-standards-Double-D-ring-Removable-&-washable-lining-1400-g-50-g-Visor-racing-visor-Tool-free-quick-release-foresight-scratch-proof-UV-resistant