Fi Series 3/3+ BioThane Collar - Sport Layered Design
Rugged layered sport style that pairs Fi security with lightweight durability (unit sold separately).
WATERPROOF
STINK PROOF
EASY TO CLEAN
LIFETIME GUARANTEE
The ultimate BioThane® dog collar designed for Fi Series 3 and 3+ GPS trackers. This premium BioThane® collar features a layered design with sport hardware, perfectly sized to hold your Fi tracker securely. Fi tracker is not included and must be purchased separately through https://tryfi.com/.
Our Fi Series Sport Layered Collar is handcrafted with genuine BioThane® material and ultra secure Duraflex® quick release buckle hardware. The layered design creates a secure pocket for your Fi GPS tracker while maintaining a sleek profile. Waterproof, stink-proof, and easy to clean, this collar is built to last through every adventure.
Why you'll love it:
- Ultra secure Duraflex® quick release buckle hardware
- Layered design specifically for Fi Series 3/3+ trackers
- Made from Genuine BioThane® – waterproof, stink-proof, and easy to clean
- Available in multiple widths and sizes
- Customizable with your choice of colors
- Handmade in Oakland by our all-women team
Incorrect sizing is the #1 reason for collar returns.
To ensure the best fit, carefully measure your dog's neck or existing collar. Our Collar Sizing Demo is located at the end of the product photos.
Please note: Slide on ID Tags will NOT work with Sport style collars.
Questions about sizing or need a custom size? Contact us before placing your order.
Note sure which collar type to choose? Learn more about our full range of BioThane® dog collars.
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.
I have been a biothane fan for over two decades and was super excited about ordering from High Tail Hikes. I was super impressed with their customer service. They were quick to reach to me about a special color that I requested and about specific sizing question.
The collar is vey high quality and the colors are very accurate to the Canva app they provide.
I’m looking forward to our next purchase.
These ladies are wonderful.
Nyla sporting her new collar in lavender and seafoam.
Thank you so much, Lindsay! It means a lot to hear this from someone who’s been a BioThane fan for so long. We’re thrilled that your experience with our team was a good one and that the custom color and sizing details worked out smoothly. Hearing that the collar quality and colors matched your expectations (and our Canva tool!) truly makes our day.
Nyla looks absolutely beautiful in her lavender and seafoam combo — such a perfect choice! We can’t wait to make your next piece of gear. ✨
Ash loves his new collar! He hates wearing collars and finding a Fi compatible collar that wasn’t 1 inch thick in his size was a challenge. This collar works perfectly and I love how complimentary the colors are. Thank you!
Ash looks very handsome in his new collar! Thank you Ricki, glad we were able to help you both!
I needed something well made and this collar is definitely it! My husky Bruno can be a handful and his collar not only fits him perfectly but also is as strong as he is in times Bruno sees a bunny on a walk and gets crazy.
It's wonderful to hear that Bruno is loving his new collar! Thank you Gia for your awesome review helping Bruno find the perfect HTH gear!
The last FI compatible collar I got my dog was way too heavy and thick for her (she’s 36 lbs) she was always scratching at it. This one is so lightweight, easy to clean, and the width of it is so perfect. She doesn’t even seem to notice it most of the time. And picking out the two colors is so fun.
YAY! So glad you are (both) loving your new Fi Compatible Collar! Thank you April!!! (I'm loving your color choices!)
We love our Fi 3 BioThane sport collar. The colors are bright and beautiful and the collar itself is very sturdy. It was easy to get the Fi module attached and after a week of daily swimming the collar is still stink free. Highly recommend!
Sounds like you're already having many fun adventures with your new collar! Thank you Aly!!!
Great replacement - collar for Fi got nasty looking quickly. Nice custom colors and easy to clean.
Thank you so much, Justin! 💛 We’re so glad you found us when it was time to replace your Fi collar! Being able to customize the colors and easily wipe away all the dirt and grime is such a great combination. 😄 We hope you and your pup enjoy your new collar for many adventures to come. Thanks for choosing High Tail Hikes! 🐾✨
Beautiful colors and such good quality
The collar is of very high quality. The material is similar to a leather feel but safe for our pup as she seems to get contact reactions to metals etc. The Fi piece sits on top of the collar material so it's not rubbing on her neck and causing a rash. It's also cleaner because the collar itself is easy to wipe down after play. Thank you so much!
Thank you so much, Molly! We’re really glad to hear that the collar is working so well for your pup’s sensitive skin — comfort and safety are always top priorities. Thank you for sharing your experience, and give your girl some extra love from us.
Great.
It was perfect! Great color, great quality!
We looked for so long to find a Fi collar we loved and High Tail Hikes nailed it! It is our favorite collar and we will definitely be ordering more.
YAY!! So glad we could check off all the boxes for you! Thank you Keri!
Perfect!
Thank you Megan!
Love that I don’t have to take the collar off to charge. I love the colors. I am so happy to have a collar that rinses off easily. Happy to be a High Tail Hikes family.
So glad you are enjoying your new HTH gear! Thank you Kate, we're glad you're part of the family too!
Having the collar between the Fi device and my dogs coat has prevented tangles. Great design!
That is great! TYSM!
We bought this for our Fi 3 collar because it's so much lighter weight, 3/4"width, easy to clean, and cool looking. LOVE IT!!! Buy it, you'll love it too.
Wow, thank you Sally! We appreciate your kind words :)
Love this collar! If I could buy one in every color I would! Perfect for outdoor adventure/water dogs
Thank you so much Emily!!
amazing quality! Looks amazing & we love BioThane since it’s super easy to clean & dries instantly. A must for our 8 month old golden retriever!!
I absolutely love the new color that I ordered for my dog’s Fi tracker. The colors are amazing and it’s holding up quite well.
Love hearing this, thank you Jamie!
Can design your own colors and it's soft, waterproof and just what I was looking for for in a long lasting collar. Will recommend.
Thank you Sandy! So glad you are enjoying your new HTH gear!
I got a two tone Fi compatible collar (layered). Love the colors, and it seems to be a very durable collar. Only two small things that I don’t love, it doesn’t fit on the Fi series 3 charge base unless I disconnect one side of the Fi tracker. And the little hard plastic slider doesn’t stay in place so the two layers of the collar don’t stay tightly together but those are minor things It’s still a wonderful collar and I’d buy more
Great collar and company!!
Thank you so much Billy!
