Clover has been the symbol of Adidas since 1972, when all Adidas products used this symbol. Clover is shaped like a three-dimensional plane of the earth, much like a map of the world, which symbolizes that three stripes extend to the whole world. But since 1996, the clover logo has been specially used in the classic series of Original products. The classic series is based on the best products in Adidas' history and re-released after slightly modifying its fabrics and styles. The whole series is more fashionable, and the products include accessories such as shoes, clothes and bags.