adidas Y-3 by Yohji Yamamoto Size Chart Leather and textile upper adidas ® Y-3 by Yohji Yamamoto™ run sneaker. Lace-up closure. Round-toe silhouette. Leather and synthetic lining. Synthetic insole. Rubber outsole. Imported. This item may ship with an attached security tag. Merchandise returned without the original security tag attached or a damaged tag may not qualify for a refund. Weight of footwear is based on a single item, not a pair.