SUNVP Super Lightweight Ski Snowboard Helmet Durable One Mold Design Skiing Skating Helmet with Removable Washable Lining Chin Pad and Earmuff for Adult Youth Professional Outdoor Sports MATERIAL: PVC + EPS One-piece molded, impact of the stronger, high safety factor SIZE: L (58 --- 61CM), net weight 350 g(please allow 1 to 3cm error because of manual measurement) 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.