Description: Sporty and Reliable: This ski helmet is designed for both skiing and ice skating. It offers a lightweight yet stable structure with shock-absorbing features to ensure your head's stability during winter sports.Comfortable Inner Lining with Large Particulate Matter Net: The removable inner lining provides cushioning protection, sweat absorption, and quick-drying capabilities for a more comfortable wearing experience. The built-in large particulate matter net effectively blocks bugs and foreign objects from entering during rides.High-Density EPS Body: The interior of the helmet is made of high-density EPS material which is strong in impact resistance. While enhancing hardness, it maintains a lightweight design.360-Degree Rotation Adjuster: This feature allows you to adjust the size of the head circumference freely so that the helmet fits better on your head making it more comfortable to wear while protect you during sports activities.Chin Pad & Quick Release Buckle: The chin pad has numerous comfortable breathable holes capable of quickly absorbing sweat; it can be freely removed and washed for healthier use. The quick-release buckle makes it easy to put on or take off without getting stuck, enhancing protection levels effectively. Specification: Material: EPS and PP Size Chart: S: inner length 21cm/8.27inch, width 16cm/6.30inch, head circumference 51cm-54cm/20.08inch-21.26inch OR M: inner length 22cm/8.66inch, width 17cm/6.69inch, head circumference 55cm-58cm/21.65inch-22.83inch OR L:?inner length 23cm/9.06inch, width 18cm/7.09inch, head circumference 59cm-61cm/23.23inch-24.02inch Package Includes: 1?Ski Helmet Note: Please allow slightly errors due to manual measurement.