Ky b003 sports unisex bike helmet 11 vents cycling cycling mountain cycling road cycling recreational cycling hiking climbing eps abswhite black
Genderunisex featuressports one piece youth mountain activityclimbing recreational cycling road cycling mountain cycling hiking cycling head circumference inch15 18 vents11 materialeps abs certificationce fit for20 21inch 51 53cm 23 24inch 585 61cm 22 23inch 56 585cm 21 22inch 53 56cm head circumference cm50 53 53 56 56 60 brandkuyou net weightkg02 production modeself produce