Fi Collar Add-On / End Links Only
Fi Compatible Dog Collar for Series 2 and 3
Fi Collar Add-On / End Links Only
Fi Collar Add-On / End Links Only
Fi Compatible Dog Collar for Series 3
Fi Dog Collar Replacement Band
Fi Dog Collar Replacement Band
Martingale Fi Dog Collar Replacement Band
Fi Collar Add-On / End Links Only
Dog Collar Styles in Martingale and Quick Release Buckle
Fi Collar Add-On / End Links Only
Fi Compatible Dog Collar for Series 2 and 3
Fi Collar Add-On / End Links Only
Fi Collar Add-On / End Links Only
Fi Compatible Dog Collar for Series 3
Fi Dog Collar Replacement Band
Fi Dog Collar Replacement Band
Martingale Fi Dog Collar Replacement Band
Fi Collar Add-On / End Links Only
Dog Collar Styles in Martingale and Quick Release Buckle

Must be purchased with a dog collar

Fi Collar Add-On / End Links Only

$25.00 Sale Save
Fi Collar Series
Size (collar size + add-on size must match) XS (12"-13")

Fi Collar Info

This is an upgrade to add authentic Fi end links to one of our dog collars in order to make it Fi Compatible. It does NOT include the Fi GPS device. You’ll need to add this upgrade to your cart along with any of the collars on our website (ready to ship or made to order, any style and width) to add the ability to secure a Fi GPS to the top of your collar.

Sizing: Because of where the tracker sits on top of our collars, our standard sizing will lose the first 2” of adjustment. This is reflected in the sizes you choose above for extra precaution.

Disclaimers: A Fi GPS is not included with your collar. Black Hardware is not recommended for water use. If your dog frequents the water, please select the Stainless Steel Hardware.  Discounts are not valid on this product.

How To Order

You may choose any size/width/style for your Fi Collar

-Add any collar of your choice to your cart. All collars can be seen here

-Add the Fi upgrade (above) to your cart after selecting the series of your device and the collar size (the size selected for the collar & upgrade must match)

When the Fi device is added to our collars, it limits the amount of possible adjustment available. Our collar sizes taking the Fi device into account are shown below:

Buckle Collar Sizing

XS:  available upon request as the adjustment is only 12"-13"

Small: 14"-16" (36cm-40cm)

Medium: 16"-20" (40cm-51cm)

Large: 18”-24” (46cm-61cm)

XL 20"-29" (51cm-74cm)

Martingale & Limited Slip Collar Sizing

XS: Fi collars not available in this size/style

Small: 14"-15" (36cm-38cm)

Medium: 16"-18" (40cm-46cm)

Large: 18”-22” (46cm-56cm)

XL 20"-29" (51cm-74cm)

Q: What size collar does my dog need?

A: Your dog's collar should be able to adjust up and down from their neck size for the perfect fit. Example: an adult dog with a 14in neck should wear a small, but a puppy with a 14in neck should wear a medium.

When ordering slip-on styles such as fabric martingales or limited slips, make sure the size range you select will fit over your dog's head and still fit around their neck.

Returns/Exchanges: 

We try to avoid returns/exchanges, especially for fi collars. However, if it doesn't work out, the buyer (you) is responsible for a 50% restocking fee and all return/exchange shipping costs for Fi Compatible Collars that need to be returned/exchanged. This is due to these collars being custom-made to fit your pup along with having to punch holes into a collar, making it no-longer sellable. 

Handmade in the USA.

Our products are proudly made to order Oregon, USA by talented seamstresses who are paid fair, living wages. Our impact is important to us, so we make our products from a recycled canvas, scource materials from the USA as much as possible, and use 100% recyclable packaging. We're here to create unique, long-lasting and sustainable dog gear to keep your pup safe and stylish for many adventures to come!

Choose a collar to order with your upgrade