Material: ABS outer shell, EPS inner shell, polyester Product Description: “Equipped with a removable UV-blocking and anti-fog windshield visor, earmuffs, and a removable interior for easy cleaning. Provides windproof, breathable, and protective head protection.” Protective | Skiing 尺碼表 頭圍(cm) 內長(cm) 內寬(cm) S 48-54 21 16 M 52-56 22 17 L 56-60 23 18 XL 59-63 23.5 18.5