Spark Paws Dog Hoodie Emerald Green Tie Dye Velvet 3XL NWT Attached Chest Measurement - 30 inches ( around the chest behind the elbows) Back - 21 inches- ( from between shoulder blades to base of tail ) I have a 60 pound Border Collie and it did not fit him well. I believe the company makes them for the Bully breeds. ( it was very difficult to take pictures of this lying flat- please see the stock photos)