Colorfulhouse Christmas Dog Dress Cute Pet Costumes Pet Apparel for Small Dogs (S) Colorfulhouse Christmas dog dress for small and medium dogs XS: Chest girth 10 inches, Back length 7 inches, Neck girth 7.8 inches S: Chest girth 13 inches, Back length 9 inches, Neck girth 10 inches M: Chest girth 16 inches, Back length 11 inches, Neck girth 12 inches L: Chest girth 19 inches, Back length 13 inches, Neck girth 13.7 inches