Code SAVE20 saves 20% through Monday 11/16

Your cart 0

Your cart is empty

Check out these collections.

All BioThane Products
two brass biothane leash extenders with brass hardware on a white background
eight biothane color samples from the core collection - chili red, persimmon, flamingo, poppy, goldenrod, green apple, sage, & forest green
eight biothane color samples from the core collection - teal, ocean, blueberry, lavender, violet, plum, caramel, & black
eight biothane color samples from the seasonal color collection - red, coral, bluebird, granite, magenta, periwinkle, midnight & olive
purple biothane leash extender with brass hardware hanging from a black dogs harness
purple biothane leash extender with brass hardware hanging from a black dogs harness and attached to a sport leash
two brass biothane leash extenders with brass hardware on a white background

BioThane Leash Extender - Brass

$43.96

Add extra length and flexibility to any leash setup.

Solid Brass Sport (Autolocking Carabiner)

WATERPROOF

STINK PROOF

EASY TO CLEAN

LIFETIME GUARANTEE

Sometimes you need just a little extra length. Use our BioThane Leash Extender to add length to your leash or long line, clip directly to your dog’s harness as a short leash, or keep it handy as a safety backup on the trail. Lightweight, waterproof, and built to last, it’s a simple tool that makes your gear more versatile.

Why you’ll love it:

  • Flexible length options - choose from 12”, 18”, 24”, or 36”

  • Fixed D-ring at one end makes attaching another leash or accessory easy

  • Solid Brass hardware for a classic look

  • Premium BioThane® - waterproof, odor-proof, antimicrobial, and wipes clean in seconds

  • Handmade quality - crafted to order in Oakland, CA and backed by our lifetime guarantee

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.

Read Our Story
  • 5 stars: 3 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
T
Tammy (Wake Forest, US)
Works exactly as expected

Works exactly as expected. Beautiful color, well made, easy to handle.

Thank you so much, Tammy! 💛 We’re so glad you’re loving the beautiful color, quality, and easy handling of your new gear! Thank you for choosing High Tail Hikes, and we hope you and your pup enjoy many happy adventures together!

L
LT (Lilburn, US)
Biothane custom leash

I recently ordered and received a biothane custom leash and absolutely love it. The additional handle 2 feet from the collar connection is great for working on heel command and also to be able to hold him close when in public situations. i love the light weight and rugged material. i will definitely be uchasing again!

Thank you so much, Libbie! 💛 We’re thrilled you’re loving your custom leash! That extra handle is such a great feature for training and keeping your pup close when needed. We’re so glad you’re enjoying the lightweight, durable BioThane, too! Thank you for your support, and we look forward to being part of more adventures together! 🐾

J
Jonathan Perkins (McKinney, US)
Hard to find, and happy with it!

My German Shepherd is a joy filled nut on our walks, and whenever she finds an open field she gets hyper and starts chewing on her leash. I don't mind her playing that way, but I don't want to her destroy her leash. So I did some research and decided to buy a biothane leader. But they're harder to find than one might expect! Happy I found a 24" leader from High Tail Hikes--and problem solved!

Thank you so much, Jonathan! We love how you described your German Shepherd — “joy-filled nut” sounds about right. 😄 We’re so glad the 24' BioThane leader has been the perfect solution for her playful chewing and that it’s holding up to her enthusiasm. It means a lot that you found us after doing your research, and we’re thrilled to be part of your walks now. Wishing you both many happy, leash-safe adventures ahead!

YOU MAY ALSO LIKE

RECENTLY VIEWED