Ralph Lauren Caldwell short-sleeved open collar shirt. Size is L (Width 50-55cm, Length 70-75cm, Shoulder width around 45cm). The seller is 170cm tall and slender, and the size feels roomy. It's a crazy pattern of gingham check. Purchased at a vintage clothing store in Nakameguro. It's in good condition with no noticeable stains or fraying, but please understand that it's a vintage item.