DOT certified dual-lens retro open-face motorcycle helmet-I55Product Features: Safe Materials: High strength ABS shell, high density EPS cushioning layer, US DOT safety certified. Dual Lens System: Outer layer is high definition, wear resistant, and has high light transmittance; inner layer is anti glare and sun shading. Ventilation System: High efficiency ventilation system; removable and washable lining keeps the user dry at all times. Hook and Clip Design: Multi stage quick release buckles, can withstand