Below you will find which size fits the most common dog breeds. If your dog breed is on the border between two sizes, is a mixed breed, or if you want to be more confident, feel free to measure the dog's waist as well.
Small (waist size approx. 30-42 cm) normally fits the following breeds: Bichon Frize, Chihuahua, Miniature Poodle, Miniature Pincher, Miniature Poodle, Miniature Schnauzer, French Bulldog, Maltese, Pug, Papillion, Pekingese, Shih tzu.
Medium (waist size approx. 40-53 cm) normally fits the following breeds: Australian kelpie, Basset, Beagle, Border collie, Border terrier, Cairn terrier, Cavalier king charles, Cocker spaniel, Danish-Swedish farm dog, Drever, English springer spaniel, Finnish tip, Jack Russel, Middle Poodle, Pinscher, Pyrenees, Schnauzer, Shetland Sheepdog, Softcoated Wheaten Terrier, Springer Spaniel, Stövare, Tax, Tollare, Welsh Terrier, Whippet.
Large (waist size approx. 54-68 cm) normally fits the following breeds: Airedal Terrier, Alaska Malamute, Australian Shepherd, Belgian Shepherd, Boxer, Bull Terrier, Collie, Dalmatian, Dobermann, English Setter, Golden Retriever, Gordon Setter, Greyhound, Hovawart, Irish Setter, Jämthund, Karelsk björnhund, Labrador, Pointer, Rhodesian ridgeback, Riesenschanuzer, Schäfer, Siberia Huskey, Smålandsstövare, Storpudel, Vorsteh, Wachtel.
XL (waist size approx. 60-78 cm) normally fits the following breeds: Akita, Anatolian Shepherd Dog, Bernese Mountain Dog, Bloodhound, Boerboel, Borzoi, Briard, Bullmastiff, Cane Corso, Dogue de Bordeaux, English Mastiff, Grand Dane, Grosser Swiss Mountain Dog, Irish wolf dog, Kangal dog, Komondor, Leonberger, Newfoundland, Ovcharka, Pyrenean dog, Rottweiler, Sankt bernhard, Scottish deer dog, Tornjak, Weimaraner.