XXS: 10 cm (length); 25 - 30 cm (neck); 30 - 35 cm (chest) - Chihuahua, Puppy, Miniature, Toy, Tea Cup and similar sized breeds.
XS: 11.5 cm (length); 30 - 35 cm (neck); 37.5 - 42.5 cm (chest) - Yorkshire Terrier, Maltese, Chihuahua, Pomeranian, Puppy and similar sized breeds.
S: 13 cm (length); 35 - 40 cm (neck); 42.5 - 55 cm (chest) - Miniature Schnauzer, Pug, Shih Tzu, Jack Russell and similar sized breeds.
M: 15 cm (length); 40 - 50 cm (neck); 52.5 - 62.5 cm (chest) - Westie, Pekingese, Schnauzer and similar sized breeds.
L: 17.5 (length); 50 - 57 cm (neck); 62.5 - 72.2 cm (chest) - Poodle, Shar Pei, Bull Terrier and similar sized breeds.
How to Measure:
Length - Measure from the base of the neck (where the collar would sit) to the base of the tail along the dog's backbone.
Chest - Measure right around the body around the deepest part of your dog's chest, usually just behind the dog's front legs.
Neck - Measure right around the neck, allowing enough room to slide 2 fingers in for comfort
Need help measuring your dog. Read our 'How to Measure Your Dog' guide here!