M 57 - 58 21 1/2 - 22 3/4. S 55 - 56 21 5/8 - 22. XS 53 - 54 20 7/8 - 21 1/4. Clavicle cut-away – provides increased clavicle clearance. 3-year limited warranty. Exceeds DOT FMVSS 218, ECE 22-06, FIM 02, and ACU certification standards.
6D ATR-3 Helmet Off Road Dirt Bike Lightweight Speaker Pocket DOT FIM ECE XS-2XL
6D Helmets ATR-3 Adult Off-Road Motorcycle Helmet | Reflex | DOT FMVSS 218 & ECE 22.06 Certified | Omni-Directional Suspension (ODS) System | 3K Carbon Composite Shell | Advanced Ventilation
6D HELMETS | ATR-3Y Youth Offroad Motorcycle Helmet | Hex | Omni-Directional Suspension, 3K Carbon Composite Shell, Ventilation
6D HELMETS | ATR-3 Adult Offroad Motorcycle Helmet | Solid | Omni-Directional Suspension, 3K Carbon Composite Shell, Ventilation
6D HELMETS | ATR-3 Adult Offroad Motorcycle Helmet | Pure | Omni-Directional Suspension, 3K Carbon Composite Shell, Ventilation
6D HELMETS | ATR-1 Stealth Off-Road Motorcycle Helmet | Durable Tri-Composite Shell, Added Protection to Chin, Jaw, & Sternum
