There are 2 ways in which you can determine the right size collar for your dog.
Option 1: Measure your dog's old collar. To do this lay the collar out and use a tape measure from the outer edge of the buckle to the hole used to find the right length.
Option 2: Measure your dog's neck. To do this use a tape measure to measure how you wish the collar to fit around your dog’s neck i.e. with enough room so as not to be too tight but not too loose that the head slips through. A rough gauge is to allow two fingers to fit easily under the tape whilst measuring.
When you have determined the measurement required please check against the sizes available. Note the cm/inches indicate the actual size the collar will fasten up to.
X Small: Teacup Chihuahua, Toy/Miniature Breed puppies
Small: Yorkshire Terrier, Papillion
Medium: Pomeranian, Toy Poodle
Large: Shih Tzu, Jack Russell
X Large: Cocker Spaniel, West Highland Terrier
XX Large: Staffordshire Bull Terrier, Standard Poodle
Superdog: Boxer, Labrador, Dalmatian
Superdog 1: Giant Schnauzer, Pointer
Superdog 2: Great Dane, Irish Wolfhound