1. Breathable hole design: snow helmet with breathable vents, multi hole ventilation design, breathable and heat conductive, prevents heat build up, which leads to sweating and hypothermia on the head 2. Widely used: the ski helmet is suitable for a variety of ski techniques, easy to control wind and snow, giant slalom, small slalom, skiing, ski jumping and traditional skiing 3. Material: The snowboard helmet features an impact resistant PP outer shell, a high density inner shell and a specially tuned comfortable and elastic lining insulation layer. The entire helmet is streamlined, relatively light and does not affect the field of vision 4. Adjustable strap: head circumference adjustment knob, head circumference adjuster, adjust according to the head circumference to improve comfort