Measuring Your Dog for a Martingale:
A martingale collar does NOT come with a buckle; therefore, the collar must be large enough at its maximum adjustable size to slide over the widest part of your dog's head.
To properly measure your dog for a martingale, please measure the circumference around the following three areas and then choose the size from our drop-down menu that includes all three of these measurements:
1) the widest part of your dog's head
2) the neck just behind the ears
3) the neck where the collar generally sits
As an example, if the widest circumference point of your dog's head is 17.5", the neck behind the ears is 15", and the neck where the collar sits is 16.5", you want to choose the size range that includes all three of these measurements. This dog would require a MEDIUM collar, which is adjustable from 14" to 18.5" inches. PLEASE NOTE: If you feel your dog is between our pre-set sizes, choose the larger of the two sizes from the drop-down menu and then leave a note during checkout with your dog's measurements. (You can leave a note by clicking the link "Add a note to your order" while viewing your shopping cart. The link is located just under your list of items.)
Measuring Your Dog for a Traditional Buckle Collar:
To measure your dog for a traditional buckle collar, simply measure the circumference of your dog's neck where the collar generally sits. Then choose the size from our drop-down menu that includes that measurement.