MATERAL: Strong ABS+EPS, and it conforms ASTM-2040 standards.SIZE:M 55-58CM/21.6-22.8IN; L 58-61CM /21.6-24IN. Adjustable strap help you to choose the right size.FEATURE:The helmet has an adjustable ventilation system, keep you away from the heat. It also has comfortable warm lining and warm your ears.♥ Head around-protection for your sporting,this helmet has two reinforced layers.♥ This is a test that has been broken many times for the ski helmet. ♥ The experiment was successful, it could withstand more damage than you can imagine, and you could protect your head with maximum protection.♥ This helmet has been selling well at amazon, so it's a great honor to be able to represent this helmet. ♥ It's worth the price!RUNMO provided high quality outdoor products, hope you satisfied with them and support with us. RUNMO focus on the outdoor sports and provide excellent service to the customers.
