Shop Polo Ralph Lauren Men's Classic-fit Plaid Oxford Camp Shirt In Yellow Green Multi from 600+ stores, starting at $81. Similar ones also available. On SALE now! The oxford shirt made its debut at the beginning of the Ralph Lauren brand, and since then it has solidified its status as a pillar of the Polo look. Today, Mr. Lauren continues to design countless variations of his iconic shirt, including this short-sleeve version from Polo Ralph Lauren, which merges a casual silhouette with classic plaid.