DOT Safety Standard: <br/> motorcycle helmet: disassembled in the lining to keep the helmet clean, fresh, odorless. Very comfortable wear <br/> certification Material: ABS Engineering Plastic + EPS<br/> Weight 960 grams (2.1 lbs)<br/> Type: Motorcycle Helmet<br/> Volume: 35 * 25 * 24 cm<br/> Helmet Size: S (55-56CM), M (57-58CM), L (59-60CM), XL (61-62CM)<br/> Applicable head circumference of the helmet: s (52-53 cm), M (53-55 cm), L (55-57 cm), XL (57-59 cm).<br/> (Accurately measure the head circumference and select size to avoid too much or too small).<br/> Scope of application: unisex<br/> Applicable scenario: motorcycle / ATV / off-road / endurance<br/> package: 1 * Motorcycle Helmet 1 * glasses 1 * Gloves 1 * mask<br/> If you have any questions, please contact us. We will reply you within 24 hours.<br/><br/> Helmet size tips<br/> (1) Wrapped tape measure more than half eyebrows one inch<br/> (2) Take two to three times the measurement results, choose the largest one