adidas Y3 Men's Apparel Size Guide adidas® Y-3 by Yohji Yamamoto™ Fleece Vest loose fit silhouette. Front snap-closure. V-neckline. Sleeveless. Side hand pockets. Straight hem. 44% wool, 40% cotton, 16% recycled polyester. Professional dry clean. 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.