First check the size chart, X-Large, neck: 14.9" bust: 21.2" back: 16.5" Made of 75% interlocking and 25% cotton, comfortable and cute Tight but easy to wear Everything about me is printed on the back Special designs for puppy and kitten birthday parties, photos and daily wear Product Description Size: XX-Large (Neck: 15.7 inches, Bust: 25.1 inches) | Color: Black Measure your dog's perfect body* 1. Your baby usually wears S size does not mean that all S sizes are suitable for him/her. Different designers and manufacturers use their own size tables. Therefore, the size given by manufacturer "A" in the SMALL size will be the XS size in the size chart of manufacturer B. Do not buy products of a specific size, because this is the size you often buy in pet stores or online stores. Before you decide to buy, be sure to check the bust and length sizing chart and confirm the size. 2. If any measurement is between two sizes, please choose the larger size. If your measurement is close to the upper limit of a given range for a particular size, you may also need to choose a larger size because you may also want to make it for thick-haired dogs to accommodate all the fur. 3. Every measurement must be loose. Every time you take a measurement, you need to relax so that your dog has room to move and breathe, but not too loose. (The size of Belly Bands is an exception, it needs to be slightly tighter) Please measure carefully before buying. If you have any questions about fit before bidding or buying, please email us. Size details: XL size (neck: 14.9 inches, chest: 21.2 inches, back: 16.5 inches) XXL size (neck: 15.7 inches, chest: 25.1 inches, back: 20.8 inches) Size XXXL (neck: 16.5 inches, chest: 26.7 inches, back: 23.6 inches) Size XXXXL (neck: 17.3 inches, chest: 29.1 inches, back: 26.7 inches) XXXXXL size (neck circumference: 18.9 inches, bust: 29.9 inches, back: 31.5 inches)