GUB SV18 Windbreaker Cycling Helmet Road Helmet Ultralight with PC Box

*New wind-breaking design to reduce wind resistance
*Helmet with full edge for more safety protection
*Material: EPS+PC
*One-piece anti-collision and shock absorption
*Weight about 264g
*10 ventilation holes
*Removable inner pad
*360 degree adjustable head circumference
*Packaging and PC plastic box, can be used as a storage box
*CNAS certification
*size:57-61 cm (adjustable for head circumference)