Custom Brass Leashes + Long Lines Large Dogs (3/4" Width)
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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 large dogs. Whether you need a standard BioThane® leash, a long leash for dogs, or a BioThane® long line for training, this ultra durable large 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
- High quality solid brass 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.
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FEATURED PET GALLERY
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.
Josey and I are loving her new long leash and matching collar on our summer hiking trips. Both the leash and collar are so well made and they clean up so easily after a long walk in the woods. The color is perfect too! Thank you for making such great products!
Thank you so much, Sarah! We’re so happy to hear you and Josey are loving your matching leash and collar on your summer hiking adventures. There’s nothing better than gear that’s ready for muddy trails and cleans up easily afterward! We’re thrilled you’re enjoying the quality and color, too. Thank you for your kind words and support—we wish you and Josey many more wonderful hikes together! ✨
I purchased a custom sport convertible hands free long line and it is worth every penny and more! Every detail of it is impeccable. It has made training sessions while out and about so much easier and allows my son the freedom to sniff and explore. I would buy this leash again and again. Just another amazing product from a wonderful group of people. Thank you from me and King!
WOW Danielle! Thank you so much!! We love hearing that you - and King - are loving your new HTH gear!!
- 5 stars: 67 (97%)
- 4 stars: 1 (1%)
- 3 stars: 1 (1%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
Josey and I are loving her new long leash and matching collar on our summer hiking trips. Both the leash and collar are so well made and they clean up so easily after a long walk in the woods. The color is perfect too! Thank you for making such great products!
Thank you so much, Sarah! We’re so happy to hear you and Josey are loving your matching leash and collar on your summer hiking adventures. There’s nothing better than gear that’s ready for muddy trails and cleans up easily afterward! We’re thrilled you’re enjoying the quality and color, too. Thank you for your kind words and support—we wish you and Josey many more wonderful hikes together! ✨
I purchased a custom sport convertible hands free long line and it is worth every penny and more! Every detail of it is impeccable. It has made training sessions while out and about so much easier and allows my son the freedom to sniff and explore. I would buy this leash again and again. Just another amazing product from a wonderful group of people. Thank you from me and King!
WOW Danielle! Thank you so much!! We love hearing that you - and King - are loving your new HTH gear!!
I’ve always used leather leads for our dogs, but tan as for a customizable bio thane product caught my attention. The lead is soft to hold (I have the widest width even though our dog is under 30 pounds), the brass snaps and D rings are great and it looks amazing. It’s easy to hold in the rain and the quality is top notch. Definitely need more of these at our house.
That is great! So glad you are enjoying your new HTH gear, THANK YOU Meredith!
Look at that smile! Thank you for sharing!!
We let the leash drag on hikes or connected on a jog. Never a hitch and easy to clean.
So glad you're enjoying your new HTH gear! Thank you Robin!
Long lines have been such a game changer for our walks. We have two leashes from HTH - 8' large width for neighborhood walks and a 10' mid width for our occasional hikes and beach adventures. The extra length gives Cannoli more freedom to sniff, roam, and move away from stressors, and gives me the opportunity to learn her behaviors/cues and respectfully react to them.
Definitely appreciate getting to choose how far up the traffic loop is as well; our store bought leashes would always have the loop at the very end of the leash which made it very hard to grab due to our pup's long body. We ordered ours to be further up for easier access when we reach crowded or tight areas.
We love hearing that your walks and adventures are more enjoyable with your Long Line! We wish you and Cannoli many amazing adventures together! TYSM Janelle!
I wanted a leash that I could use both for scent work for my 45 pound herding dog, and for my high energy 65 pound bully breed who has a really high prey drive. I was torn on getting the large or medium thickeners, and I think this was perfect for what I wanted it for. Given that my bully mix can pull very hard, the thicker leash is easier on my hands. My only regret was not adding another handle part way up my 10’ leash! Will buy again!
Great choice for your needs Megan! We are so glad you're enjoying your new HTH Gear! Thank you!
Our long lines have given our dogs more freedom when they can’t always run free!
Thank you Regina! Thank you for the pic too, we love seeing HTH in the wild! That blue looks beautiful with those beautiful black coats
I recommend High Tail Hikes to all my clients for high quality leashes and long lines. Love the colors and the feel and they’re so easy to clean. We’re big fans of yours at Train DogFriendly!
Thank you so much Susan! We appreciate your support!
I have a 12' and a 30' long line for my guy. The 12' is for our neighborhood walks and the 30' is for our daily beach/woods adventure. I can't believe how much better my dog behaves with more room to move. We both enjoy our walk and it has given us so much opportunity to practice recalls and responsiveness. The clasps are still in great shape, even with daily exposure to salt water and sand.
We are adopting a new rescue soon and I am buying more High Tail Hikes before our new family member gets here. Being able to customize each leash is another reason I will always come back.
So happy to hear you are both loving your adventures with your High Tail Hikes gear! Thank you Julia! (and we will always be here for your new pup's needs too!)
I’m so happy with my long line. The leash is beautifully made and feels nice to hold. Walks with my dog have been even better with him able to explore and sniff more. Huge thank you to the whole team for designing and making such a nice product!
Thank you Abby! We appreciate your kind words and love that you and your dog are enjoying your new leash!
truly. we love our HTH long line SOOO MUCH. we have a 2 year old 70lb high energy pibble who absolutely loves to romp around in nature- sniffies in the park, trail sniffies, forest sniffies…all the sniffies. this long line (30ft!) gives him so much freedom to explore while also keeping him safe. we have it in persimmon which is a super bright color- just what we wanted (visibility!). definitely an essential and highly highly highly recommend! *we have a brass bolt snap and traffic handle at 24 inches. when we first got it i sort of regretted not getting a sport clip for more security but the brass snap has been great and super secure! also we got a safety strap jic, so feel good about the whole setup. also!! the fact that we just need to give it a quick wipe down after a muddy/snowy/rainy romp- wow. amazing. 10/10! paired w the long line keeper 3 in 1- game changing.
Very durable, customizable, and aesthetically pleasing! It's very versatile in uses/handling styles. Sand and debris wash off of it with ease- and it dries quickly. Made with much care and attention to detail- worth every penny. :purple_heart:
I love how lightweight yet strong these leashes are. The slight texture of the material makes for a great grip. Took them on our first muddy hike yesterday and they rinsed off clean and looked like new. The colors are gorgeous, it’s a well made product, and we’re happy to support a local female owned business!
No matter where we go, we always get asked about our beautiful leash and long line from High Tail Hikes! We have a 10ft large leash and a 20ft large long line and both have been great to use with our 50+lb pit mix. When we are at home in NYC, we use the 10ft lead, which has been the perfect length for us when we do have more space on sidewalks and streets and can give her a little more lead. We use the 20ft long line when we go to the beach or are in a park and not surrounded by anybody. Both are incredibly easy to clean due to the biothane material. I always recommend HTH to dog friends!
I’m very happy with the leashes. I ordered 2 of the 1/2” and 4 of the 3/4”. The only reason for four stars instead of five is that Kuru K9s sells these leashes for $10 less
Love it good quality and functional leash
Thank you so much, Ashley! 💛 We’re so glad you’re loving your leash! Quality and functionality are so important to us, and we love hearing that our gear is working well for you. Wishing you and your pup many happy adventures ahead! 🐾
Great leash. This is not my imagination but all dirt disappears from this leash! Durable and fun colors!
Thank you so much, Leslie! 😄 We love hearing this — and honestly, we don’t think it’s your imagination either! 💛 One of our favorite things about BioThane is how easily dirt, mud, and adventure wipe right off. We’re so glad you’re enjoying the durability and fun colors, and we hope you and your pup have many more muddy (but clean-looking) adventures ahead! 🐾✨