adidas Y-3 by Yohji Yamamoto Size Chart Leather upper adidas ® Y-3 by Yohji Yamamoto™ sandals. Slip on style. Round, open 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.