The Atomic Four Amid ski helmet features Holo Core technology for maximum shock absorption, and In-Mold construction with an Amid system. This provides 40% more protection than conventional safety standards. Aircon ventilation ensures good air circulation and efficient evacuation of heat generated during exercise. Thanks to the 360 Fit System, precise adjustments ensure a perfect fit to your head's morphology, and the lining is removable and washable. This description is an automatic translation. Please contact us if you have any further questions. Helmet Atomic ---Four Amid Black