adidas Y-3 by Yohji Yamamoto Size Chart The adidas® Y-3 by Yohji Yamamoto™ Y-3 Kaiwa Sneaker feature a leather and textile upper, lace-up construction, stretch heel, and branded tongue. Leather and textile lining and 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.