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Fi Series 1 & 2 Compatible Multicolored Biothane Collar (5/8", 3/4", 1" and 1.5" widths)

Four Black Paws

This Fi compatible Biothane collar comes in a 5/8", 3/4", 1" or 1.5" wide collar.

It comes with two 1" wide tabs that sit on top of the collar to hold your Fi unit; since the Fi sits on top of your collar, no stress is put on the Fi unit. This collar comes with the Fi end links attached (Fi end links are only available in silver). There is no need to unhook your Fi unit from the collar for charging; simply pull the biothane back and place on the charger (see photos attached for an example).

Only 1.5” wide collars come standard with a strap keeper (a box will pop up to choose a color). 5/8”, 3/4” and 1” wide collars DO NOT come standard with a strap keeper. If you’d like a strap keeper for a 3/4” or 1” wide Fi compatible collar, please contact me prior to purchasing for a special order.

Engraved name plates can only be added to 14"-16" or larger collars. Collars that measure less than this do not have enough space on the open part of the collar to fit the Fi end link tabs and an engraved name plate.

Fi units are NOT included with your purchase. 

Every collar in this line is hand crafted from coated webbing that is durable and easy to clean. It even stays flexible in cold weather! This amazing webbing is soft and has the appearance of leather but is more durable, cleanable, stronger and easier to maintain than leather. It's also:

-water repellant

-stink-resistant **NOT resistant to skunk smell.


-stronger than nylon and leather

-cleanable with soap and water

IMPORTANT COLOR NOTE: Blaze Orange, Hot Green, Hot Pink and Hot Yellow are neon colors and are HIGHLY prone to bleeding/transferring color onto themselves and other colors! Please be aware before ordering a color combo that includes neon color(s). Do not store collars and/or leads touching each other to avoid color transfer.

Ordering Instructions: 

It is very important to carefully measure your pups neck (or current collar) to get an accurate collar fit as these collars do not have as big of an adjustable range as our fabric and canvas collars. When ordering, choose the size that has your dog's neck size set as the middle hole for the best fit. See the photo above for our recommendation on getting an accurate measurement.

There are 2 simple ways to measure your dog's neck size to determine which collar size will fit your pup best.

1. **This method is recommended** Gently use a piece of string or other soft material like a phone charger cord. Hold the end of the string/cable between your finger and thumb and gently wrap the other side around your dog's neck (the base of the neck above the shoulders) where the collar will sit. The tape should be snug but not too tight. If your dog has very thick fur be sure to get the tape closer to the skin. Let go of the string/cord and mark the spot in the middle of the string/cord with your finger that marked your pup's neck size. From there, use a tape measure to get the measurement from your string/cord measurement. You'll want to choose the size of collar that has your dog's neck size as one of the middle numbers. For example, if your pups neck is 17", you'll want to choose the 16"-18" collar.

2. Use their current collar (see photo above for more information on how to do this): Note: do not measure end to end! This is a very common mistake and if done this way, your measurement will be off by at least an inch or two resulting in a collar that is too big. In the photo, you'll see that the female end (open end of the buckle) is placed at the "0" on the measuring tape. Measure from this spot on the 'female' end of the buckle to just where the material ends (do not include the 'male' end of the buckle in your measurement). You'll see, in the photo above, that Leila's fabric buckle collar measures 17" and her perfect fit biothane collar is the 16"-18" size.

**If you are having trouble finding your pup's neck size, please don't hesitate to contact me for help or send pictures of your pups current collar next to a ruler/tape measure for me to help you determine the best size. DO NOT submit an order if you are unsure of sizing; email with the information listed above.

All holes on the collar are set 0.5" apart for a more personalized fit. Please note, an additional hole is punched before the first and after the last measurement of the size you order. For example, if you order a 16”-18” collar, your collar will be adjustable 15.5” to 18.5”.

I can add additional holes before the smallest size on your collar if you'd like the collar to have a wider range of adjustability. Please contact me before ordering for instructions on how to order.

Please scroll through the pictures to see all available collar color choices. You will also need to choose if you'd like stainless steel (silver) hardware or solid brass (gold) hardware.

Standard vs. Super Heavy:

The choice between purchasing the standard thickness collar and the super heavy thickness collar is personal preference. Both thicknesses have a break strength of 750-1,000 pounds. The standard thickness material is approximately 0.1" thick and the super heavy thickness material is approximately 0.15" thick.

Engraved Name Plate:

Engraved name plates are available at an additional cost and attach to your new collar using the same strong rivets we use to make the collar.

Your name plate will come in the same color hardware that you choose and will come attached to your collar.

You can choose up to 3 lines of text. Please note, the more text you choose, the smaller the lettering will be.

Each consumer is responsible for determining the suitability of these products for their individual situation. Consumer accepts all responsibility by purchasing and using these products. Four Black Paws is not responsible for any and all injuries that can occur from the improper use of its products. 

Collections: Fi Compatible Collars

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