This Polo Ralph Lauren Performance button down shirt is a great find for anyone looking for a comfortable, stylish yet casual shirt. It is size 4XB 4TG and is a 60/40 blend of polyester and nylon to keep you cool, dry and comfortable all day. A nice piece for someone looking for that hard to find size, in a beautiful pattern. Please note all measurements before purchasing to help assure a proper fit. We wash all used clothing per original instructions and store in poly mailers til the order is placed. We process all orders with one day handling to provide the best service possible.