Soccer Dog Coats are provided in six standard sizes. To work out your pets size, use the following guidelines below.

For a perfect fit, you should measure your dog along its back between the base of the neck and the top of the tail
Size Typical Dog
X Small - 10" (25cm)  

Yorkie, Westie, Lahsa Apso, Shih Tsue, Bichon Frise

 
Small - 14" (35cm)
Medium - 18" (45cm) Cocker Spaniel, Whippet, Corgi, Dachsund, Miniature Poodle
Large - 22" (55cm) Golden Retriever, Border Collie, Boxer, Dalmatian, Airedale
X Large - 26" (65cm)
XX Large - 30" (75cm) Old English, Sheepdog, Setter, Doberman, Afghan, German Shepherd