Half Helmet
With virtually the same front design as a 3/4 motorcycle helmet but with a cropped rear portion, the half motorcycle helmet provides the minimum coverage typically allowed by motorcycle helmet law in the US (in most states).
Akin to the open face motorcycle helmet, the half motorcycle helmet's eye protection is often increased through the use of goggles or sunglasses.
When purchasing a half helmet (shorty motorcycle helmet), be sure to check whether it meets the state's Department of Transportation (DOT) standards for motorcycle helmet safety.