Back: Measure length of pet’s back from the base of the neck to the base of the tail. See below for estimating by breed.
Neck: Measure the circumference of pet's neck for a snug fit. No need to add inches as you would with a collar.
Chest/Girth: Measure girth around the broadest part of the chest and add 2".
Note: If the dog has a stout build, select one size larger.
Recommended sizing by breed:
X-Small:
Brussels Griffon, Chihuahua, Chinese Crested, Maltese, Papillon, Pekingnese, Pomeranian, Toy Poodle, Yorkshire Terrier
Small: Australian Terrier, Border Terrier, Boston Terrier, French Bulldog, Miniature Dachshund, Miniature Pinscher, Miniature Poodle, Norwich Terrier, Pug, Shih Tzu, Silky Terrier, West Highland Terrier
Medium: Beagle, Bichon Frise, Brittany Spaniel, Cairn Terrier, cocker Spaniel, Corgi, Jack Russel Terrier, Lhasa Apso, Scottish Terrier
Large: Australian Shepherd, Border collie, Bulldog, Dalmatian, Standard Schnauzer
X-Large: Collie, Golden Retriever, Labrador Retriever, Rottweiler, Vizsla, Weimaraner
XX-Large: Irish Wolfhound, Mastiff, Newfoundland, St. Bernard
