SUNVP Snowboard Helmets Integrally Adult Snow Sports Helmet (White/blue, M) Material: PVC + EPS One-piece molded, impact of the stronger, high safety factor Size: M (55 --- 58CM), net weight 368 g Adjust the size of the device: easy to wear a helmet, a unified regulator upgrade to high toughness materials, improve comfort, increase the safety factor Sweat chin pad: with a chin pad, fast absorbent, enhanced comfort, to prevent accidental injury. Detachable ear cotton , convenient for customers to clean Cap with jack: using imported Italian DuPont materials, and special situations encountered impact without breaking, to ensure the safety of the wearer.