자전거 헬멧

A bicycle helmet is any headgear marketed as protecting a bicycle rider from head injury while riding, or that is marketed or promoted in a manner that implies it provides such protection. If a helmet is marketed or represented as providing protection during general use or in a variety of specific uses other than bicycling, it is still regarded as a bicycle helmet if a reasonable consumer could conclude, from the marketing or promotion, that bicycling is among the uses for which the helmet is intended.