adidas Y-3 by Yohji Yamamoto Size Chart The adidas® Y-3 by Yohji Yamamoto™ Y-3 Shiku Run Sneaker showcases a leather and textile upper with a lace-up construction, and square-toe silhouette. Leather and textile lining and insole. Synthetic 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.