Spice up your Fi adventures with our biothane Fi compatible collars! They are stink proof, water proof, and stain resistant. Easy to install and you can charge the unit without having to take it off. 

The collar has biothane all around the neck to prevent any irritation that can be caused by the unit and provide a more secure option.

Limited colors available in 1.5"
*Matte black hardware is coated and more prone to scratching.

As with any collar, please supervise your dog with use. Martingales are made to tighten as the dog pulls, so please use caution. 

Sizing guide:

How to swap out your unit to our collars:

Series 2

Series 3