Colorfulhouse New designed Christmas dog costume for small and medium dogs * XS: Chest girth 12.5 inches, Back length 9.5 inches, Neck girth 8 inches * S: Chest girth 13.7 inches, Back length 11 inches, Neck girth 9 inches * M: Chest girth 15 inches, Back length 12.5 inches, Neck girth 10 inches * L: Chest girth 19 inches, Back length 15 inches, Neck girth 13.7 inches