GHSA urges all states to adopt a universal motorcycle helmet law and vigorously enforce existing laws. 1  47 states, the District of Columbia, Guam, the Northern Mariana Islands, Puerto Rico and the U.S. Virgin Islands have a helmet law for motorcyclists. 19 states, the District of Columbia, the Northern Mariana Islands, Puerto Rico and the U.S. Virgin Islands have a universal helmet law, requiring helmets for all riders. 2  The remaining 28 states and Guam require helmets for specific riders.
Hides and Skins. the skins of domestic and wild animals, as well as fur seals, fish, and reptiles, that are used as the raw materials in making leather.
Full-Grain and Top-Grain Versus Split Leather. The typical leather hide is split into two parts. The surface layer, the layer closest to the animalâs hair, is called the top-grain layer. The lower layer is called the split layer. In our industry, full-grain leathers, which include both layers, are the most desirable. The natural markings on the hide are attractive, and so it is not necessary to correct the surface appearance of the leather in any artificial manner. Top-grain leather is slightly less desirable.