Fi Compatible Collars

Made with genuine Fi endlinks, our Fi compatible collars are the perfect accessory for updating your dog's look. These require an existing Fi collar, sold separately at tryfi.com.

All of our Fi collar bands are made to order. You choose the colors and size, we'll do the rest! Please allow 5-10 business days for us to create your custom collar. (In a hurry? Reach out to us at hello@majordarling.com)

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Series 3 / 3+ Fi compatible martingale collar / custom colors

$46.00

Series 3 / 3+ Fi compatible snap collar / custom colors

$44.00

built for security

Why Fi + Major Darling

Fi provides real-time GPS tracking, escape alerts, and activity monitoring through their app.

Our collars are designed to securely hold the Fi device while giving you more functional and design-forward options than the standard collar alone. If your dog is a flight risk, a martingale collar adds an extra layer of security.