Dragon-Evo-helmet-represents-the-maximum-expression-of-Premier-39-s-experience-&-knowledge-on-composite-fibres-In-the-Dragon-Evo-version-the-shell-was-revised-&-the-ventilation-system-is-completely-new-The-shell-is-made-with-a-DCA-three-composite-material-a-perfect-mix-of-dyneema-carbon-&-aramidic-fibers-in-order-to-obtain-the-ideal-outcome-both-for-lightness-&-resistance-The-shape-of-the-shell-is-aerodynamic-&-is-the-result-of-careful-laboratory-tests-but-most-of-all-it-has-been-tested-on-motorcycle-39-s-tracks-in-extreme-conditions-thanks-to-the-experience-of-international-racers-Features-Lining-high-quality-removable-&-washable-Effective-air-flow-ventilation-2-2-mm-thick-safety-visor-Chin-ventilation-Air-flow-ventilation-aerodynamics-Best-materials-for-your-safety-2-shell-sizes-Clear-visor-anti-fog-&-scratch-resistant-QRS-Quick-Release-System-Visor-change-Dynamic-adjustable-chin-&-head-ventilation-Double-D-closure-Weight-1-290g-ECE-22-05-approved