Construction: External cap in ABS material, supporting outer shell in EPS material * Features: Helmet shell and foam liner meet EN1077 standard. Ear covers designed to allow sound transmission. Multiport venting. * Colors Black, blue, red, silver, light blue, light pink, black with skull * Certification: CE certified EN1079.Once straps and pads are adjusted to the proper fit, grab helmet and twist. The skin on your forehead should move with the helmet. Youth/adult extra small, small, medium, large, extra large. See size chart for specific * Sizing & Fit: Your helmet should fit snugly and comfortably on your head. It should rest about two centimeters above your eyebrows. Minimal room between head and padded liner or pressure points indicates a need to try a larger size.