*High-density EPS inside the PC shell *One-piece anti-collision and shock absorption *Magnetic photochromic mirror *The goggles change with the light (the stronger the light, the darker the goggles will be) *13 ventilation holes for heat dissipation and ventilation *GB 24429-2009 certification *The depth can be adjusted in the upper, middle and lower positions to wrap the back of the head *Removable inner pad for easy cleaning *Size: (57-62cm adjustable head circumference) *Weight about 334g
