adidas "Y-3 is a strong examination of the blend of sport and style and the tension caused by mixing tradition with all that is modern." — Yohji Yamamoto Pulling from the archives, Y-3 returns a running silhouette to the streets with the progressive Kaiwa shoes. A minimalist design philosophy exposes the roots of the pioneering sport style. They have a leather and neoprene upper with suede details, and offer enhanced comfort with lightweight cushioning.