Size Neck Circumference Height Example Breeds
 XX-Small
 6 - 9 inches
 3.25 inches
Kittens, Chihuahua, Toy Yorkie
 X-Small
 9 - 11 inches
 4.5 inches Cats, Puppies, Pomeranian
 Small
 11 - 13 inches

 5.5 inches

Large Cats, Boston Terrier, Jack Russell Terrier, Pug, Toy Aussie
 Medium  13 - 15 inches  6.5 inches Corgi, French Bulldog, Whippet
 Large  15 - 18 inches  9 inches Brittany, Border Collie, Shiba Inu
 X-Large  18 - 20 inches  10 inches Australian Shepherd, Dalmatian, Golden Retriever
 XX-Large  20 - 24 inches   11 inches German Shepherd, Great Dane, Siberian Husky

 

  • This size guide is particular to this product and does not apply to other products 
  • Example breeds are meant to be used as a guide and may not apply to every pet