adidas Y-3 by Yohji Yamamoto Size Chart The adidas® Y-3 by Yohji Yamamoto™ Y-3 Classic Bucket Hat is crafted in a polyester with an adjustable toggle drawstring and tonal brand logo. Hand wash. 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.