Y-3 is the on-going fashion collaboration between Japanese designer Yohji Yamamoto and Adidas. The name Y-3 includes a Y for Yamamoto and a 3 for the three stripes of Adidas. Representing Adidas’ fashion-forward offering, Y-3 launched in 2003. The line often marries Yamamoto’s relaxed silhouettes with the sporty attitude of Adidas.