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. The sock-like construction is crafted with a smooth leather and neoprene upper and detailed with suede accents. An EVA midsole offers enhanced comfort with lightweight cushioning.