1、Safety design: The reinforced ABS shell and shock‑absorbing EPS core provide more durable protection and prevent head injuries during winter outdoor sports. 2、Adjustable vents: There are 10 vents and adjustable switches on the top of the ski helmet to control the size of the vents and keep the air flow at the right temperature if needed. This is why ski helmets adapt to different weather conditions. winter. 3、Adjustable size: The size adjustment dial is customized from about 20.47 inches to about 24.80 inches (52 cm to 63 cm), depending on your head circumference. A soft, luxurious lining and thick earmuffs that are removable and easy to clean keep your head and ears warm during winter outdoor sports. 4、Compatibility with ski goggles: The buckle on the back of the ski helmet and the groove around it help keep the ski goggles in place. Ski goggles can be kept still during the process of high‑speed outdoor sports. 5、Package included: 1x ski helmet suitable for skiing, snowboarding, cycling, snowmobiles, skating and other snow sports. Feature: 1. Made of EPS and ABS material, it has heat retention and windproof properties. 2. Hook and loop fastener adjustable chin pad, provide you with the right size. 3.10 Vents have a humane design, breathable, dry and delicate. 4. One-piece design with unique holes, convenient to wear. 5. Adjustable head circumference to fit your head. 6. Further isolate your ears for warmth to keep them cool. 7. Detachable ear cotton chin mat, easy to clean. Specification: Material: ABS shell + EPS core Weight: about 520g/540g Color: black/white/striped black Head size: M (52-55cm), L (58-60cm) (please choose your own size before purchasing) 1pcs Adult Ski Helmet