Features-All-World-Standard-meets-or-exceeds-the-following-DOT-FMVSS-218-US-ECE-22-05-EUROPE-SAI-AS1698-AUSTRALIA-amp-SG-JAPAN-SAFETY-&-TESTING-STANDARDS-does-not-ship-with-sai-or-sg-certification-stickers-unless-purchased-from-an-authorized-dealer-in-that-country-Injection-molded-Polycarbonate-Shell-for-strength-&-durability-Recessed-Twin-Channel-Supervent-trade-with-industry-leading-intake-&-exhaust-ports-for-increased-cooling-Fog-Free-Icon-Optics-trade-shield-with-Prolock-trade-shield-locking-system-Adjustable-chin-&-forehead-venting-system-maintains-continual-temperature-for-increased-comfort-in-any-riding-situation-Rapid-Release-trade-Shield-Change-System-Removable-molded-breath-deflector-helps-prevent-fogging-Fully-removable-washable-Hydra Dry-trade-Moisture-Wicking-Interior-Easy-adjust-ergo-vent-switch-for-superior-or-air-flow-control-Available-in-four-shell-sizes-with-an-Icon-exclusive-long-oval-headform-for-ultimate-fit-&-comfort