Fitting your dog for a M & M Designs collar
Measure the largest part of your dog's head and the middle of his/her neck.
If your dog's head is larger than its neck, you will need a size that is large enough to slip comfortably over its head.
If your dog’s neck is larger than his head, then you need a collar that will fit comfortably around its neck. Your dog’s head size will not matter in this case (e.g., greyhounds, shelties, etc.)
Provide that measurement. M&M Designs will add at least 2" to the largest measurement (head or neck) so that you have some room for weight gain or coat growth.