●A more streamlined hole design, fashion unique and beautiful, multiple ventilation forms a variety of styles are appropriate, making it more comfortable ●Adjustable rotatable internal regulator adjusts for an airtight seal of head size ●Easily wear helmet and fashion in this section while focusing on safety ●Comfortable cushion lining. High double-sided product. Black velvet earthquake, increase earthquake effect ●Air vents take part of the heat by improving the internal helmet of air flow