This colorful dog jacket is specially designed for Racing dogs. 5 colors are optional. Pls choose it according to its shoulder's size.. Size s: shoulders (48cm-58cm); size m : shoulders (59cm-65cm); size L : shoulders (66cm-73cm). More important, All Numbers on the jacket are sent by accident. If you do mind it, pls do not buy it. Buy One get One Free: if you need differnt color or size, pls leave us notes there. If not, we will send it randomly.