BioThane Keychain - Sport (Twist Lock Carabiner)
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Keep your keys secure with our bestselling keychain!
WATERPROOF
STINK PROOF
EASY TO CLEAN
LIFETIME GUARANTEE
Sport Keychain - Secure, Stylish, and Built for Life on the Go
Calling all dog walkers, dog pros, and anyone who juggles keys on the move - the Sport Keychain keeps your keys secure, visible, and always within reach. With its aviation-grade carabiner and customizable BioThane® strap, it’s a practical accessory that doesn’t sacrifice style.
Why you’ll love it:
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Secure twist lock carabiner with a swivel base
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Stainless steel split ring holds multiple keys securely
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Perfect size - ~6.5” end to end for easy handling and a solid feel
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15+ vibrant colors - customize your look
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Adventure-proof - durable, waterproof, and easy to clean
Handcrafted in Oakland, CA and built to last, this keychain is perfect for professionals and everyday guardians alike.
Custom BioThane Leashes and all other BioThane gear typically ship within 5-10 business days. Lead times may be shorter or longer depending on order volume and time of year. Production lead times do not include shipping or transit time.
Shipping Fees
Standard Shipping (USPS Ground) is $7.99. Priority Shipping (USPS Priority) is $12.99.
U.S. Shipping is free for orders over $85.00 (after coupons and discounts).
Shipping Time
All U.S. orders are shipped via USPS. You will receive an email with tracking info once your order ships. Please note that once your order is shipped, we cannot provide additional tracking information beyond what is available to you through USPS.
For more information about our Shipping Policies or International Shipping click here.
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FEATURED PET GALLERY
Frequently Asked Questions
We offer a range of Biothane dog walking and training accessories including Traffic handles, safety straps, long line keepers, clicker straps, utility belts, keychains, and more. We also offer non-BioThane walking accessories like poop bags and waste bag holders, all designed to pair seamlessly with our BioThane® gear.
Yes! Our BioThane® accessories are made with solid brass or Sport (carabiners made from aircraft grade aluminum paired with and black steel) hardware. All are water proof, odor proof, and easy to clean.
Most accessories clip to a leash D‑ring or can be attached via a carabiner to our Utility Belt or your own waist belt. Some items (like leash keepers or traffic handles) are intended for specific products; see each product page for instructions.
Soak in warm soapy water, clean with a towel or sponge, and rinse with water. For tough messes, a light scrub with a soft sponge or toothbrush works well. Always store dry. Solid brass will not rust, but may develop a natural patina over time. Black‑coated hardware may show cosmetic wear or rust over time, but strength isn’t compromised.
Our BioThane® accessories are available in our full range of colors; perfect for matching your other walking gear. Many of our accessories have custom width and length options to fit you and your dog.
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 love the security of the locking carabineer. This is easy to attach to a backpack or fanny pack, and strong enough to use for any accessory.
Thank you Rachel!
Sturdy, practical and looks great. I love it.
You make us smile Crystal! Thank you for giving High Tail Hikes some love!