Injected Polymer Compound shell in three sizes; Multi-density impact foam ; Injury reduction technology: Reduces forces associated with head injury; ; Moisture wicking, breathable, anti-odor and washable inner liner; Designed to offer great neck brace mobility; Visor with breakaway function for rotational reduction in a crash; Emergency cheek pad removal; 360 Turbine Technology: Reduced peak ] acceleration by up to 30% at impact speeds associated with head injury; Reduces peak rotational acceleration by up to 40%; ; Certified and tested: DOT+ECE 22.05 or JIS T 8133:2015; 3-year Leatt Helmet Replacement Program. Weight: DOT+ECE from 1.270 50g (2.80lbs); ; Sizing XS (53-54cm 20 -21 "); S (55-56cm 21 -22"); M (57-58cm 22 -22 "); L (59-60cm 23 -23 "); XL (61-62cm 24-24 "); XXL (63-64cm 24 -25 "); ; Plastic Free Recyclable Packaging;