adidas Y3 Men's Apparel Size Guide Round neckline adidas® Y-3 by Yohji Yamamoto™ Classic Logo T-Shirt. Short set-in sleeves. Y-3 logo printed on chest. Straight hemline. 96% cotton, 4 elastane. 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.