Helmet-Technology-Shell-Design-A-sleek-European-influenced-shell-design-constructed-using-an-advanced-lightweight-composite-poly-alloy-Face-Shield-A-flush-fit-lock-down-side-coverless-face-shield-that-is-optically-correct-compound-curved-scratch-resistant-&-protects-against-UV-rays-Quick-Release-Ratchet-Quick-release-shield-ratchet-system-Ventilation-8-points-of-ventilation-with-chin-side-forehead-top-&-rear-vent-3-intake-vents-&-5-exhaust-vents-This-helmet-model-meets-or-exceeds-both-ECE-22-05-&-DOT-FMVSS-218-motorcycle-helmet-safety-standards-Retention-system-is-a-race-approved-Double-D-RING-Provides-ample-ear-cavity-space-for-most-speaker-systems-A-clear-coat-finish-to-protect-paint-amp-graphics-A-large-size-FX-24-weighs-1-53-kg-or-3-3-lbs-Removable-washable-&-custom-sizable-Interior-AFX-helmet-liners-&-cheek-pads-are-made-with-a-hypoallergenic-andanti-microbial-nylon-most-of-which-are-removable-&-washable-The-size-of-this-helmet-is-based-on-a-combination-of-four-factors-outer-shell-size-inner-EPS-thickness-comfort-liner-thickness-&-cheek-pad-thickness-The-fit-of-the-helmet-can-be-customized-by-replacing-your-existing-cheek-pads-with-thinner-cheek-pads-for-a-looser-fit-or-thicker-cheek-pads-for-a-tighter-fit-The-fit-can-also-be-customized-by-replacing-your-existing-comfort-liner-with-a-thinner-comfort-liner-for-a-looser-fit-or-thicker-comfort-liner-for-a-tighter-fit-Please-refer-to-the-shell-liner-&-cheek-pad-compatibility-chart-below-Keep-in-mind-these-components-can-only-be-replaced-inside-the-group-of-sizes-contained-in-each-size-range-block-Helmet-Shell-amp-EPS-Size-XS-M-L-XXL-XS-S-M-L-XL-XXL-Check-Pad-Thickness-mm-30-27-24-24-21-18-Comfort-Liner-Thickness-mm-9-6-4-12-9-6