CHOOSE YOUR ORDERING PATH
Would you like help getting the fit right?
Every collar is made to order. Use the guided fit when you want help confirming sizing and compatible options before adding the collar to your cart.
Approximate ship date: within 3 weeks, often sooner. Eligible U.S. size exchanges follow our Refund Policy.
Fi Arctic Circle Collar
Simple slip-over construction, made to order in Alaska.
For Fi Series 2 or Series 3/3+. Collar only; tracker and subscription are not included. Help identify my Fi model
Product details & care
A padded, buckle-free collar with direct connections for your Fi tracker. Slips over your dog’s head and adjusts at the neck.
Polyester webbing, soft neoprene lining, and stainless steel rings and adjusters.
Fit: Measure the neck and widest part of the head before choosing your size. For Fi 3+ behavior tracking, the module needs room to hang naturally at the neck; use the guided fit for help.
Compatibility: Choose the Fi Series 2 or Series 3/3+ option that matches your device. Collar only; Fi tracker and subscription are not included.
Care: Clean with mild soap, gently scrub by hand, rinse thoroughly, and air-dry.
Build your collar
Choose your size, build the collar, then pick your color. Arctic Circle fit must accommodate both the neck and widest part of the head.
Measure the dog’s neck where the collar will sit and the widest part of the head. The collar must be able to pass over the larger measurement.
Collar only — Fi tracker and subscription are not included. Select Fi Series 2 or Series 3/3+ to match your device. Fi Mini and Fi Ultra do not fit directly into this collar. Help identify my Fi model
Choose your Fi model.
Fi Series 3+ is pictured. Series 3 and 3+ use the same collar connection.
Choose your collar webbing width.
We could not apply that choice yet. Please select it again.
Swatches are approximate; colors vary by screen. Only compatible choices are shown.
Colors marked “1 inch only” are removed when a 3/4 inch construction is selected.
Confirm the fit before adding to cart
Check the measurements for this dog. We keep your selected size and collar options while you confirm the fit.
YOUR BUILD
Fi Arctic Circle Collar
- Dog
- Fit
- Size
- Construction
- Color
- ID Anchor
- Not added
Add an ID tagOptional — no tag added
Choose only the tags you want. Each tag has its own engraving.
Complete your selections to see the exact collar subtotal.
Shipping & exchanges
Made to order. Approximate ship date: within 3 weeks, often sooner. Carrier transit time is additional. Shipping details
Estimate shipping in your cart before checkout. Final shipping and taxes are confirmed at checkout.
No change-of-mind returns. Eligible unused U.S. exchanges have a $35 fee, including return and replacement shipping; email authorization is required within 30 days of delivery. Exchange eligibility and exceptions
WHY A MARTINGALE?
Secure when needed. Relaxed when it isn’t.
A martingale is a limited-slip collar. It sits relaxed during normal wear and reduces its opening when leash tension is applied, helping prevent a dog from backing out of the collar.
The standard EDG martingale is built without a buckle, so it must pass over the widest part of the head and then adjust at the neck. If you add the Tactical Buckle, the collar opens instead and neck measurement drives the size.
The goal is secure, properly fitted movement—not continuous pressure.