Features: 1.Ultralight, Integrally-molded Helmet 2.Shock absorbing EPS inner liner for added protection. 3.Super lightweight, high impact hard shell helmet. The ABS shell offers excellent resistance to knocks and scrapes. 4.Fits Head Size 57-62cm (Approx 22.5" to 24.5") 5.Fully adjustable strap with anti pinch, quick release chin buckle with foam cover for comfor Specification: Light weight:240g Housing:high quality ABS Inner casing:85EPS (high-density foaming / imported materials) 28 Wind Tunnel vents with internal channeling ventilation. Features:streamlined design,anti-windage,Soft washablepads,strong,24-hole breathable big holes,comfortable lining,with regulator To measure your head size, measure the circumference just above the ears and across the forehead approximately 1" above your eyebrows. If near the top end of a size band we suggest you go for the next size up. Package included: 1 X helmet
