Custom Sport Leashes + Long Lines - Small Dogs (3/8")
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Our original best-selling leash - designed by you, built by us.
WATERPROOF
STINK PROOF
EASY TO CLEAN
LIFETIME GUARANTEE
The ultimate customizable BioThane® dog leash for small dogs. Whether you need a standard BioThane® leash, a long leash for dogs, or a BioThane® long line for training, this locking carabiner small dog leash is handcrafted to your exact specifications.
Design Your Dream Everyday Leash - Hand Crafted Just for You! Our bestselling Custom Leash is handcrafted to order in our Oakland workshop, built around the details you choose. Choose your leash width, length, color, and hardware type - then add personal touches like a two-tone accent color, a built-in traffic handle for extra control, or a handy D-ring on the handle for clipping keys or a poop bag holder. BioThane® makes your leash lightweight, waterproof, and stink-proof - ready for everyday walks, big adventures, and everything in between. With endless ways to customize, you'll get a leash that's not only durable, but totally your own.
Why you'll love it:
- Custom made to order in your choice of width, length, color, and hardware
- Ultra secure aircraft grade autolocking carabiner hardware
- Optional two-tone accent color at handle and clip end
- Optional built-in traffic handle for quick control
- Optional D-ring on handle for clipping accessories
- Handmade in Oakland by our all-women team. Your custom leash ships in 5 to 10 business days.
Custom BioThane Leashes and all other BioThane gear typically ship within 5-10 business days (this does not include shipping/transit time). Lead times may be longer or shorter depending on order volume.
All orders are shipped via USPS.
Standard Shipping (USPS Ground) is $7.99.
Priority Shipping (USPS Priority) is $12.99.
U.S. Shipping is free for orders over $100.00.
For more information about our Shipping Policies or International Shipping click here.
Returns are accepted within 60 days of the receipt of the item. Items must be in like new/salable condition and in original packaging. All custom BioThane gear is subject to a 15% restocking fee. For more information review our Return Policy. For all returns, if you choose to use the pre-paid label we provide when you submit the return request, then a $5 label fee will be deducted from your refund or store credit. Customers who elect to use their own label to send the item back will not incur the $5 return shipping fee.
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Frequently Asked Questions
Our leashes are handcrafted from BioThane®, a waterproof and stink proof coated webbing made in the US. BioThane is incredibly strong while still being lightweight, doesn’t absorb water, odors, or dirt, and is a cinch to clean, making it an ideal material for dog gear.
Read more →
BioThane® is exceptionally strong for its weight, with a minimum 1,000 lb break strength per inch of width. An intact BioThane leash paired with quality hardware will hold up to even the strongest pullers. That said, BioThane (like any leash material) is not chew‑proof - it’s engineered for tensile force, not teeth. Please don’t leave any dog unattended while wearing a leash. If chewing happens, reach out - we may be able to repair or offer a discounted replacement.
We offer five core leash styles - pick based on your lifestyle and activities:
- Quick Ship Leash - Our classic loop‑handle leash. Ships in 2–5 business days with free returns.
- Custom Leash (Bestseller) - Fully customizable (length, width, colors, hardware, add‑ons). Ships in 3 - 10 business days.
- Simple Hands Free Leash (Customer Favorite) - Lightweight and streamlined, with a convertible handle for hands free use and custom add-ons available. Ships in 3-10 business days.
- Multiway Hands Free + Convertible Leash (Original Bestseller) - Our most versatile design; wear/use 8+ ways (standard, hands free around the waist or crossbody, multiple length options, and more), custom add-on options available. Ships in 3 - 10 business days.
- Drag Line - A leash with no handle for a lightweight “off‑leash” feel. Low‑profile design is less likely to snag; optional D‑ring at the end lets you clip a traffic handle when needed. Ships in 3 - 10 business days.
Quick tip: Not sure where to start? Our Custom Leash and Simple Hands‑Free Leash are the most popular everyday picks.
Leash Width: Choose based on your dog size and preferred leash feel:
- 3/8" - Small dogs (under 30 lb). Light in hand yet strong.
- 1/2" - Small-medium (up to 60 lb) or anyone who prefers a lighter feel.
- 3/4" - Medium-large (60+ lb), strong pullers, or for a more “traditional” leash hand feel.
Leash Length (activity guidance):
- 4 ft : Short car-to-trail transfers or ultra close quarters.
- 6 ft : Standard leash length.
- 8, 10, or 12 ft : Our most popular everyday lengths; give your dog freedom while keeping them safe.
- 15 ft - Perfect for hiking, decompression walks, and recall practice.
- 20 ft - Great for beach trips, camping, and travel - extra room to roam while staying safe.
- 30 ft - Sniffaris, big open fields, SniffSpots, and backyards. Not advised for beginners.
New to long lines? Start with something just a few feet longer than your current leash (e.g., 6 ft → 10 ft), then increase length as you and your dog get comfortable.
Read more about how to choose the right leash for you and your dog →
To clean your leash, soak in warm soapy water, gently clean with a towel or sponge, rinse and dry. Always rinse your leash and hardware with fresh water after a beach trip. Store your gear dry and in an area out of the sun (to reduce UV damage) with good ventilation.
To keep your brass clip working well, periodically clean and then add a few drops of penetrating oil such as WD-40 into the clasp/spring mechanism and open and close multiple times to help clear gunk.
Brass hardware will not rust but may develop a patina over time (can be cleaned/polished); black hardware will show cosmetic wear over time and/or rust if stored wet.
With all of our color options, we understand that it’s hard to choose! Due to the hundreds of possible color and leash combos, we’re not able to offer a photo preview of every leash color.
Here are a few resources to help you choose your colors:
- Check out our Color Combos Photo Gallery with dozens of real life product photos
- Grab access to our Digital BioThane Colors Guide + Leash Simulator (a free Canva tool to help you design your leash)
- Consider our Color Wheel product (physical swatches of each color we currently offer)
- Reach out - we’re always happy to provide color combo recommendations!
All leashes are handcrafted to order; Quick Ship Leashes ship within 2-5 business days and Custom Leashes ship within 5-10 business days. This does not include shipping/transit time.
Production times may be longer after seasonal sales or during times of high order volume.
Eligible items may be returned within 60 days of receipt for a refund (minus applicable restocking fees) or a store credit. Items must be in new, resalable condition to be eligible for return.
Personalized items (ID Tags and ID Tag Collars), treats, snuffle mats, sale, and pre made items are final sale and are not eligible for return. International orders are final sale and are not eligible for return.
Please view our full return/warranty policy.
Reach out here anytime and our small team will get back to you quickly.
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.
Recently adopted my sweet girl who was trained on a retractable and she's adjusted beautifully to the new leash! It's better for me too as I have more control and she keeps her sniffing freedom! I also ordered it in green apple as the primary color and it's easy for both of us to see, even at night! It's easy to clean and soft on my hands. The clip is just the right size for my little pup (only 8lbs!) and the 2ft traffic handle is always within easy reach ♥️
Oh my goodness, such sweetness she is! Thank you Sarah, we are so glad you are both loving your HTH gear (and freedom!)
The leash looks great. The locking caribener seems very secure. My husband doesn't like the way it feels in his hand (we have the thinner leash). Unfortunately after using this leash for about a week, my 6 month old puppy was lying at my husband's feet and bit the leash in half. Her adult teeth have been coming in and she's been chewing more than usual. Obviously not high tail's fault but it's hard to leave 5 stars for something that broke so quick. I would not recommend this for dogs that grab the leash or chew.
- 5 stars: 40 (95%)
- 4 stars: 2 (5%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
I have had multiple brands of leashes for my dogs and this by far is the best. It is super lightweight and I love that you can customize not only colors but the traffic handle, and length as well.
Thank you so much, Margaret! We’re so happy to hear you’re loving your lightweight leash — and that the customization options are a hit! Wishing you and your pups many happy walks ahead!
I love this line however I should have ordered 1/2 inch vs 3/8 I just wasn’t thinking right. Anyway I use it when I’m hiking. I’ll be ordering another one just a little shorter and wider
Thank you so much, Shanna! We loved seeing your hike video — your pup looks so happy out on the trail. We’re glad the line is working well for you, and no worries on sizing — it happens! We’ll be here whenever you’re ready for that shorter, wider version. Wishing you and your pup many more beautiful hikes ahead!
Recently adopted my sweet girl who was trained on a retractable and she's adjusted beautifully to the new leash! It's better for me too as I have more control and she keeps her sniffing freedom! I also ordered it in green apple as the primary color and it's easy for both of us to see, even at night! It's easy to clean and soft on my hands. The clip is just the right size for my little pup (only 8lbs!) and the 2ft traffic handle is always within easy reach ♥️
Oh my goodness, such sweetness she is! Thank you Sarah, we are so glad you are both loving your HTH gear (and freedom!)
The leash looks great. The locking caribener seems very secure. My husband doesn't like the way it feels in his hand (we have the thinner leash). Unfortunately after using this leash for about a week, my 6 month old puppy was lying at my husband's feet and bit the leash in half. Her adult teeth have been coming in and she's been chewing more than usual. Obviously not high tail's fault but it's hard to leave 5 stars for something that broke so quick. I would not recommend this for dogs that grab the leash or chew.
We have a variety of leashes and long lines from HTH. They are amazing! The customization options and colors are perfect for our needs, and we get so many compliments! The carabiners on the sports leashes are lightweight and easy to use. 10/10 long line!!
Thank you Erin!!! We love the lightweight carabiners too, so easy and safe!
I have had this long line for just over a month and use it nearly every day. It's comfortable, easy to clean, and looks great! I'm sure I will order another but I will probably get the regular snap next time, the carabiner is not the easiest to use. That being said if it were the only option I would still reorder! Biothane is worth the investment!
So glad you are enjoying your long line! The BioThane is so easy to care of! Thank you Trina!
100% recommend them! After ordering a 30 ft leash, we knew we needed more. We currently have the a 10ft, 15ft, and 30ft because these are fantastic. So durable, easy to handle + clean, customizable, and pretty!
Lucia, we love hearing how much you love our long lines! Thank you!
Thank you Audra! So glad to hear you are loving your long line!
Love LOVE love it! So light weight amd durable. Easy to clean and easy to keep from tangling
Our trainer recommended High Tails Hike leashes many months ago, and we first got an 8ft convertible for our hikes. We’ve since gotten different leashes for all our different activities (customization is wonderful!). Love that they are waterproof and easy to clean.
After adopting our Korean pup in December, we wanted to safely integrate her into our routine of daily hikes, while allowing her to have more freedom. This leash/line is perfect for that. We have graduated to the level where she can have the line drag behind her without getting caught on things & I can easily grab it without scaring her (she gets spooked easily), if needed. It’s also so easy to clean. Highly recommend!
I’ve tried a lot of different leashes, and this brand wins by far! And being able to customize your color is fun!
Thank you so much, Wendy! 💛 We’re thrilled to hear our leashes are your favorite! Quality gear and fun color combinations are what we’re all about. 😍 Thank you for choosing High Tail Hikes, and we hope you and your pup enjoy many colorful adventures ahead! 🐾
Beautiful and super functional long line, i cant wait to go on more hikes with my SD using it.
Thank you so much, Elizabeth! We’re so glad you’re loving your long line — “beautiful and functional” is exactly what we aim for. 💛 It means a lot to know it’ll be part of your hikes with your SD, and we hope you have many safe and happy adventures together. 🐾✨
Game changer may seem a bit cliche but is completely warranted. Walking three pups safely and comfortably while providing greater agency has become so much more possible with these long lines. I couldn’t be happier.
Thank you so much, Jamie! We love hearing that the long lines have been a game changer for walking your three pups — that’s no small task! Being able to walk multiple dogs safely while still giving them more freedom and choice is exactly what long lines are all about. We’re so glad they’ve made your walks more comfortable and enjoyable. Wishing you and your trio many happy adventures together!
It's very comfortable to use and my dog loves it. I was able to choose my own colors. I would buy their leashes again
Thank you so much, Mary! We’re so glad to hear the leash is comfortable to use and that your pup loves it too. Choosing your own colors makes it extra special, and we’re thrilled it was a great fit for you. We truly appreciate your support and would love to make more gear for you anytime!
We have a very reactive rescue. This leash is great because I can wear it cross body or clip it to my belt, ensuring I never drop the leash accidentally during a high stress moment. The only request I have from high tail is to add another secure clip option. The locking carabiner is tricky to quickly get on and off, and as our dog does not like to be handled, this poses a bite risk for me should the clip catch, which it often does when trying to smoothly undo it. The brass hooks pose a similar problem, as they only open on one side. I would recommend adding in an O-shaped clasp that opens like a clamshell with a lever. We have annother leash that I often reach for due to this added ease. Overall, great leash!!
Thank you so much for your feedback Sykla, we will take this into consideration!
I got the 15 ft sport leash, myself and my dog absolutely love it. The leash itself is super lightweight and I can tell my dog doesn’t notice it flopping around as much when she’s running around. The clasp is my favorite part because it locks into place on her harness and I can relax knowing it isn’t going to accidentally unclip when she pulls. The leash is also so easy to clean, I can finally throw away her old ratty rope leash.
Awesome! Thank you April! We enjoy hearing how much you are both loving your new gear!
Our rescue is puppy is brand new to leashes and everything else. She appreciates the extra room to roam and walk at her own pace. This leash is so light weight but still strong and secure. We love it.
We love hearing that you and your new puppy are enjoying your new leash! Thank you Lindsay :)
Helps both me and my beagle enjoy our walks
We love to hear that! Thank you Alicia!
Well made, stylish and appears very sturdy, 8 foot sport leash in size small. Great for everyday walks or hikes. I got the extra loop to grab close to the collar for when I need more control. Went back for an ID collar and a safety strap! Customer service was excellent.
THANK YOU Elizabeth! We appreciate your kind words more than you know! Happy & Safe adventures to you!
It is surprisingly light and the grippy texture makes it very easy to handle despite the length. Our 12lb pup is not weighed down by it at all. Seems like it will hold up well. Also love how easy it is to clean compared to a regular cloth leash. Will definitely purchase another when it's time to replace our short leash as well.
Thank you Mary! So glad you are enjoying your new leash (and your little pup too!)
Love it, I have 3 of them
That is great Rachel! We love hearing how much you love HTH gear, THANK YOU!
Overall, super pleased with the leash - what makes your product unique are the options that you offer. Quality product, quick delivery, overall quite pleased. The only attribute I don't like is the large size of the carabiner compared to the lightness of the leash. The leash is only 3/8" wide but the carabiner is 3.5 inches long - HUGE! Love the idea of a carabiner instead of a clip, but in hindsight I would have preferred a smaller lightweight clip. Would love to revisit this if you ever made this leash with a much smaller carabiner.
Thank you Carla! We appreciate your awesome review AND your feedback! We will look into this :)