*** Please note: this collar requires a SERIES 3 Fi device, sold separately at tryfi.com. This listing is for the collar band only, and it is only functional with the Fi unit attached. We do still have Series 2 compatible collars . ***

Our classic martingale collar has been reinvented as a Fi collar band! It uses the same nylon webbing and brass hardware as our classic collars, with the addition of genuine Fi endlinks. 

Martingale collars have a loop of webbing where the leash attaches, which causes the collar to tighten gently when the leash is pulled. It should fit loosely on the neck, providing more comfort for your dog and more control for you.

This safer alternative also prevents your pup from backing out of their collar during walks, and avoids too much pressure on the trachea that can be caused by regular collars. Perfect for dogs who pull on leash, flight risk dogs, and dogs with wide necks.

Want to add a snap buckle to your martingale? Purchase a snap buckle add-on .

XXS: 3/4" wide, neck size 11.5"-12.5"

XS: 3/4" wide, neck size 12.5"–13.5"

small: 1" wide, neck size 13.5"–16"

medium: 1" wide, neck size 16"–18"

large: 1" wide, neck size 18"–23"

Please allow 10 business days for us to make and ship your collar. If you are unsure of your pup's size, please add the measurements in the notes field during checkout or drop us a line at [email protected].

Our custom collars are made to order, and returns/exchanges are subject to a 10% custom order fee to help us cover the extra labor required. Please be sure to measure your pup for correct sizing.