Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Buffalo Plaid Vest - Featuring a bold buffalo plaid pattern, this super-cool wool-blend vest is designed with buttoned-flap patch pockets and a soft faux-shearling lining. V-neckline. Snapped placket. Sleeveless silhouette. Buttoned-flap patch pockets with an additional side entry at the waist. Even-sewn hem. Fully lined. Shell: 42% wool; 37% polyester; 17% acrylic; 4% other fibers. Lining: 70% polyester; 30% modacrylic. Dry clean. Imported.