Injected Polymer Compound shell in three sizes | Brain injury reduction technology | Reduces forces associated with concussion | Multi-density impactfoam for reduction of forces to head and brain | Visor has breakaway function to reduce forces to head and neck in a crash | Inner liner is washable,breathable and has moisture wicking anti-odor fabric | Designed to offer great neck brace mobility | Emergency cheek pad removal |360° Turbine Technology | Reduced peak brain acceleration by up to 30% at impact speeds associated with concussion | Reduces peak brain rotationalacceleration by up to 40% | Certified and tested: DOT+ECE 22.05 or JIS T 8133:2015 | Weight: DOT+ECE from 1270g (2.79lbs). | Sizing #M Junior (51-52cm – 20 – 20 ½”) | #L Junior (53-54cm – 20 ¾ - 21 ¼”)