DOG COLLAR SIZING - Side Release Buckle

Measure at the narrowest point of your dog’s neck, just as tight or loose as you would like the new collar to fit. The collar should be snug, without being so tight that it will cause discomfort or loose enough to slide over your dog’s head.
As a rule of thumb, a well-fitting collar should leave just enough room for you to slide two fingers between the collar and your dog’s neck.

Size 16" adjusts 13" to 16"
Size 18" adjusts 14" to 18"
Size 20" adjusts 16" to 20"
Size 22" adjusts 18" to 22"
Size 24" adjusts 20" to 24"
Size 26" adjusts 22" to 26"