Fi Series 3/3+ BioThane Collar - Brass Integrated Design
Classic brass design with Fi Series 3/3+ integration (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 aircraft grade autolocking carabiner 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 aircraft grade autolocking carabiner hardware
- Layered design specifically for Fi Series 3/3+ trackers
- Secure pocket holds Fi tracker in place
- 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.
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.
Obsessed with the new collar for my puppy. The quality is great, and I’m excited to have a collar that’s easy to clean. Love all the color options and will likely get more in the future.
Thank you Alyssa! Your pup is adorable!
Our ‘land seal’ loves to get stinky in everything—mud, pond/lake/stream/ocean/brackish water, washed ashore critters, more mud #mudfordays. Our Fi Series 3 BioThane Collar has been a life saver. No more stinky, wet collar that used to not only get disgusting, but that would end up giving him neck rashes/irritations. The Fi Series 3 BioThane Collar wipes right down and still looks as bright and shiney as the day we got it. Thanks HTH!
Oh my! Your 'land seal' sounds adventurous! So glad the Fi Collar is working so well for you (Both!), Thank you Liz!
Mochi’s collar is a way better fit than the one that comes with the Fi tracker. The Fi collar was way too thick and bulky for her tiny length of neck. She needed a size medium because of how thick her neck is but a thinner and slimed collar. This was perfect. Thank you for making such a great product.
Wonderful! We are happy to hear your new HTH Gear is working so perfectly for you (and Mochi!) Thank you Lindsey!
High quality, beautiful colors, sturdy, and functional! Has stood up to my lab being her normal energetic self!
Thank you so much, Emily! We’re so happy to hear the leash is holding up to your lab’s energetic adventures — that’s exactly what it’s made for! We love that you’re enjoying the quality, colors, and functionality. Wishing you both many fun, durable adventures ahead! ✨
I purchased this collar for my dog after her fabric one had an odor I just could not remove (anyone else have a dog that likes to roll on smelly things?). It's a bit of a splurge purchase, but after having it for over six months now, I'd call it more of a necessity. Not only is the biothane easy to wipe clean, it doesn't store odors, AND I noticed my dog stopped scratching at her collar. I can't wait to swap over more of our gear to Biothane from High Tail Hikes; I only wish they made harnesses.
Thank you so much, Jade! We’re so glad the collar has been such a great upgrade for your pup — and yes, we definitely know those “mystery smell” rolls all too well. 😄 It’s wonderful to hear the BioThane is staying fresh and that your dog is more comfortable, too.
We truly appreciate your kind words and support, and we love that you’re thinking about swapping over more of your gear. And we hear you on harnesses! Thank you for the feedback — it means a lot.
Love these collars! My Boykin’s swim everyday and these collars are the best. Dry’s quickly and never ever smells!
That is fantastic! I'm sure they appreciate them just as much as you do! Thank you Pamela!
Super impressed with not only the product that this business sells, but their amazing customer service. Customer service is something that, in my opinion, has really been lacking lately with most companies, but High Tail Hikes customer service was the primary thing that makes me want to order from them again. A great product is one thing, but quality customer service is everything. I ordered two custom FI tracker series 3 accommodating collars for my dogs - the collars were gorgeous, and exactly what I was looking for, unfortunately, I apparently did not measure very well, though, because both were a bit small. I reached out to High Tail Hikes, and, even though companies who make custom items often will not accept returns, High Tail Hikes immediately emailed me back and said that they would accept the return because they want their customers to be happy. So instead of being stuck with two collars that would, sadly, be useless to me since they didn’t fit either of my dogs, and having to eat the money and pay the full amount twice in order to get new collars at bigger sizes to fit my pups, I got my money back and was able to place a brand new custom order. This kind of customer service and client appreciation is the kind that makes loyal customers… I will undoubtedly use this company again in the future, and look forward to recommending them to others as well. Thank you High Tail Hikes!
((blushing)) WOW Kerry, thank you so much for your kind words!!! We strive to provide exceptional customer service. I am so glad you are happy and now have collars to fit both your pups!
Collar is perfect except it’s a small. When you place your order beware that if you change the colors, it goes automatically to the size SMALL collar. I accidentally ordered the small meaning to order a large because I changed the color from black to purple. I emailed them and all they could offer me was 15% off another $50 collar. I said absolutely not and will not order from them again.
Hello Avery! Thank you so much for leaving a review! I just wanted to address your concerns as I totally hear your frustrations! First, when you select a size, the size that you select will remain selected regardless of changing the color option or any other options. We'll take a careful look at our product page to see how we can make it more intuitive. Second, I'm so sorry if there was a misunderstanding regarding our return policy! We do ask for a 15% restocking fee on our custom BioThane items, due to the fact that each item is custom made to order by hand. Many makers do not offer returns on handmade items, but we understand that occasionally a mistake is made or the item does not work out! We always strive to work with our customers so that everyone is happy, so please do reach out to us again at support@hightailhikes.com and we'll see what we can do to help!
Ordered one if these for my tiny dog. Very well made, and fits perfectly. Bonus points the color is perfect.
Thank you Kimberly! So glad you're happy with your new gear!
