New with tags Small: chest size 15” –18” (38cm–45.5 cm), back length 11” –13” (28cm–33cm). Breed: Shih Tzu, Miniature Schnauzer. Medium: chest size 19” –24” (48cm–61cm), back length 14” –18” (35.5cm–45.5cm). Breed: Beagle, Cocker Spaniel. Large: chest size 25” –28” (73.5cm–86.5cm), back length 19” –21” (48.5cm–53.5cm). Breeds: German Shorthaired Pointer, Boxer. X-Large: chest size 29” –34” (48cm–61cm), back length 22” –25” (35.5cm–45.5cm). Breeds: Labrador, Golden Retriever, Doberman Pinscher. New to Poshmark? Use code JosieJ77 when signing up for a $15.00 credit. IND6