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Fi Series 3/3+ BioThane Collar - Brass Layered Design

Regular price $60.00
Unit price
per 

Fi Series 3/3+ sits securely on top of the collar band (unit sold separately).

Additional Customization

Add a strap keeper

$5.00

Choose a color Red
Limited Edition
Total: $60.00

WATERPROOF

STINK PROOF

EASY TO CLEAN

LIFETIME GUARANTEE

Fi Compatible BioThane Collar (Brass Layered Design) - Strong, Comfortable, and Built for Adventure

Adventure with total peace of mind. Our Fi Compatible BioThane Collar is designed to integrate seamlessly with the Fi Series 3/3+ GPS tracking unit (sold separately), giving you real-time location data, activity tracking, and unmatched durability in one sleek package.

Why you’ll love it:

  • Layered design - Fi unit rests on top of the collar band (not directly on your dog’s neck) for comfort.

  • Solid brass hardware - classic, rust-resistant, and ideal for water-loving dogs

  • Made with genuine BioThane® - waterproof, stink-proof, lightweight, and wipes clean after any outing

  • Custom design options - choose from single-color or bold two-tone designs (15+ color options)

  • Lifetime guarantee - backed for life against defects in materials or workmanship

The Fi Series 3/3+ unit offers extra-long-battery life, GPS + satellite tracking, and health insights. This unit is sold separately at tryfi.com and is not included with the purchase of this collar. With this collar, you get a secure fit, no jingle, and total confidence that your pup is safe - wherever your adventures take you.


FEATURED PET GALLERY

Frequently Asked Questions

ABOUT US

We are a woman-run team of positive dog reinforcement professionals on a mission to help dogs and their guardians live their best lives together. Our goal is to help enhance the dog-human bond through products that prioritize connection, safety, and comfort over control.

Customer Reviews

Based on 7 reviews
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A
Alyssa Lawlis (Riverside, US)
Best Collars!

I was looking to upgrade my dogs’ original Fi collars and boy did I. They’re beautiful and turned out exactly like I imagined. Also super durable and easy to clean-both requirements for my high energy/maximum chaos mixed breeds. Highly recommend!

Thank you for taking the time to leave a review! We are thrilled to hear that our Fi Series 3 BioThane Collar exceeded your expectations. We strive to provide both durability and style for our furry friends. It's great to know that your dogs are loving their upgraded collars. Thank you for recommending us to others. Happy adventures!

O
Olivia Richards (Lansing, US)
10/10

Absolutely beautiful and sturdy. 10/10 recommend.

Thank you so much Olivia! (Thanks for the pic too!)