SOMAN Motorcycle Half Helmet Adjustable Helmet With Inner Mirror, Size: M(Bright Black)1. Material: ABS 2. Shock resistant, drop resistant and shock resistant, multi layer protection 3. Clear PC lenses, naked eye vision, improve riding comfort and safety 4. Enlarging and widening the endoscope, the occlusion range is larger, which can effectively protect the whole eye 5. With adjustment knob, the head circumference can be adjusted 6. Convenient and safe quick release buckle, firmly hold the helmet 7. With brim, effectively block the sun