Brittany (dog) - Wikipedia
https://en.wikipedia.org/wiki/Brittany_(dog)The Brittany is a breed of gun dog bred primarily for bird hunting.Although it is often referred to as the Brittany Spaniel, they are not actually spaniels.The AKC reclassified them in 1984 as just Brittanys, since they are pointing dogs and have less genetically in common with Spaniels, and more in common with Setters, which are pointing dogs.
Size Guide - Doggie Style Store
https://doggiestylestore.com/size-guideNeck Girth - Measure around the dog's neck at it's widest point. Body Length - Measure along the dog's backbone from the collar to the base of the tail. How to determine the correct size: The chest and neck measurement on the size chart are the most important measurements as they must be large enough to go around your dog.