Eat, Drink & Be Irish Dog Tank- Many ColorsIrish Princess dog tank for large and small dogs. 4. 25" X 3. 5" design with green, lime, & clear rhinestones. Please use the chest measurement for the most accurate measurement when purchasing our tees. If your dog is on the high end of a size, please go up to the next size especially if their total body length is measuring at the next size. For example a dog with a chest measurement of 19 and a total body length of 13 will need to order a size L