Chest: Measure girth and broadest part of dog’s chest, and add 2”.
Back: Measure the length of dog’s back from base of the neck to base of the tail.
*Please refer to the size chart found at the bottom of each collection entry. Each collection comes with its own different size chart.
Sizes 1 & 2: Australian Terrier, Boston Terrier, Brussels Griffon, Chihuahua, Chinese Crested, English Toy Spaniel, Jack Russel Terrier, Japanese Chin, Lhasa Apso, Maltese, Miniature Pinscher, Norfolk Terrier, Papillon, Pomeranian, Pug, Silky Terrier, Toy Poodle, Yorkshire Terrier
**Do note that this is only a reference - there can be variances in sizes among the same breed so it is highly recommended that measurements be taken as a precaution.