vedem dog shirts dog clothes for small dogs, cat vest tee shirt costumes pack of 2 (xs, pack of 2-black white) vedem size: xs: chest 10'', neck 7'', back length 7.5'', for pet under 3.5lbs. chihuahua puppy, kitten and newborn puppy; s: chest 13'', neck 9'', back length 9'', for pet 3lbs to 6lbs, chihuahua, pomeranian, yorkshire terrier; m: chest 16'', neck 11'', back length 11'', for pet 5.5lbs to 9lbs, pomeranian, papillon, maltese; l: chest 18'', neck 14'', back length 13'', for pet 8.5lbs to 13.5lbs, poodle, shihtzu and other medium dog