HOW TO MEASURE DOGS NECK
1) Get a flexible tape measure (or use a piece of string and a ruler).
2)Have your dog stand or sit calmly.
3) Wrap the tape measure around the base of the neck, where the collar will sit (just above the shoulders).
4) Keep the tape snug but not tight — you should be able to fit two fingers between the tape and the dog.
5) Read the measurement where the tape meets (in inches or cm) and write it down.
6) f you used string, measure the string against a ruler now.
7) Choose the next size up if your dog measures between sizes, or if you want room for thicker fur or growth.
8)Check fit once collar’s on — you should still be able to fit two fingers under the collar comfortably.