Officially Licensed by the NFL - Green Bay Packers Dog Football Jersey - X-Large (XL) Officially Licensed by the NFL - Green Bay Packers Dog Jersey Constructed of Breathable Micro-Mesh Polyester Features Official Team Number Font and Embroidered Logo on Sleeve Stylish V-Neck Cut Allows for a Comfortable Fit X-Large fits Nape of Neck to Base of Tail 26" - 30"; Girth 26" - 32"; Neck 18" - 20".