adidas Y3 Men's Apparel Size Guide adidas® Y-3 by Yohji Yamamoto™ boxy silhouette tee. Crew neckline. Short sleeves. Pull-over construction. Relaxed fit. Straight hem. Branding patch on left sleeve. 100% cotton. Machine washable. 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.