
18 Years of Craftsmanship and Expertise
When you are looking for a new leash or long line for your dog, the options can feel overwhelming. From big-box retail stores to massive online marketplaces, there is no shortage of cheap, mass-produced nylon, leather, and BioThane alternatives. However, for those who participate in serious training, tracking, or simply enjoying the Great Outdoors, "off the shelf" rarely cuts it.
At Palomine Lines, we have spent the last 18 years perfecting the art of the BioThane leash. We are not a reseller; we make BioThane leashes and BioThane long lines in-house after an order is placed by a customer. Our mission has always been clear: to offer premium gear that stands up to the toughest environments while remaining accessible to every dog owner.
In this guide, we will walk you through what makes our gear different, from our specific manufacturing standards to the unique benefits of being a Palomine Lines customer.
Experience is not something that can be fast-tracked. For nearly two decades, we have been working exclusively with BioThane to create leashes and long lines that meet the rigorous demands of dog trainers, search and rescue teams, and dedicated pet owners.
Over these 18 years, we have learned exactly how the material behaves in different climates and under various levels of stress. This history allows us to provide an authoritative perspective on what works and what doesn't. When you purchase a BioThane leash from us, you aren't just buying a piece of equipment; you are benefiting from 18 years of trial, error, and refinement. We know the strengths of the material, and we have mastered the techniques required to ensure every lead we produce is safe, durable, and comfortable for the handler.
The Standalone Small Business Promise
One of the most important things to know about Palomine Lines is that we are a standalone small business. You will not find our products on third-party online marketplaces. We sell only on our dedicated, official website, https://palominelines.com.
We choose to sell exclusively through our own website for several reasons:
- Quality Control: By managing every order personally, we ensure that every piece of gear meets our strict standards before it leaves our shop.
- Direct Communication: When you have a question, you talk to us, not a third-party bot or a marketplace representative who has never touched the product. You can reach out via our Contact Us page and speak with real representatives.
- Personalized Service: We treat every customer the way we would like to be treated when calling a business. We understand you want your questions answered by real people, who are also dog enthusiasts, with real experience using our gear safely and effectively.
By avoiding large marketplaces, we maintain the integrity of our brand and keep our focus where it belongs: on the quality of our BioThane gear and the satisfaction of our customers.

Why BioThane? The Ultimate Outdoor Material
If you are new to the world of synthetic leads, you might wonder why we chose BioThane over traditional nylon or leather. The answer lies in its incredible durability and ease of maintenance.
A BioThane long line or leash is essentially a polyester webbing with a TPU or PVC coating that makes it waterproof, odor-proof, and remarkably strong. Unlike leather, it won't rot, stiffen, or require conditioning. Unlike nylon, it won't absorb water, become heavy when wet, or hold onto the "wet dog" smell.
Thorns, Burrs and Sand (OH MY!)
For those living in or visiting arid environments, Palomine Lines gear offers a unique advantage. BioThane does not attract cactus thorns, grass burrs, or pine needles.
If you have ever dragged a nylon long line through a field, you know the frustration of spending an hour picking out debris. With our gear, the thorns and sticky seed pods simply fail to find a "grip" on the smooth surface. That's a huge win in all environments.
The same easy-clean, strong surface is right at home on the beach, in the forest, up in the mountains, and out on the plains, too. Whether you are dealing with sand, damp ground, or dusty trails, BioThane is made to keep going.
And when the weather can't make up its mind, you don't have to baby your equipment. BioThane easily tolerates rain, sleet, and bright sunny days, so you can focus on your dog and your training instead of worrying about how your leash is going to look (or smell) afterward.
Understanding Our Product Specs: Flat vs. Round
We believe in transparency and helping you make an informed choice. Not every leash is right for every dog, and we want to ensure you select the tool that matches your dog's size and your specific training goals.
Flat BioThane Leashes
Our flat BioThane options are designed to be lightweight and streamlined. Because they are constructed without heavy metal clamps, they are generally the lighter option of the two profiles. We offer flat BioThane exclusively in the following widths:
- 3/8 inch
- 1/2 inch
- 5/8 inch
These widths provide a variety of "feels" in the hand, with the 5/8 inch being the sturdiest for larger, more powerful dogs. If you are comparing materials, you may find our BioThane vs. Nylon vs. Leather guide helpful in deciding which width suits your needs.
Round BioThane (Rope) Leashes
Round BioThane is often preferred by handlers who want a more "rope-like" feel that glides easily through the hands. However, there are technical considerations to keep in mind:
- Available Sizes: We offer round BioThane in 1/4 inch and 5/16 inch.
- Weight: Round BioThane is heavier than flat BioThane. This is because we use solid brass clamps to secure the ends, adding to the overall weight of the lead.
- Important Safety Note: Our 1/4-inch round BioThane is generally too heavy for toy breeds under 12 lbs. For smaller dogs, the weight of the brass clamps can be cumbersome and may impact their movement. For these smaller companions, we recommend our 3/8-inch flat BioThane instead.

Premium Quality at Reasonable Prices
In the world of pet gear, "premium" often comes with an inflated price tag. At Palomine Lines, we strive to keep our prices reasonable without ever compromising on the quality of our materials. We use genuine BioThane and high-quality solid brass hardware to ensure your gear lasts for years.
Because we operate as a standalone business, we don't have the overhead of marketplace fees, allowing us to pass those savings directly to you. We invite you to browse our About Us page to learn more about our commitment to value.
The Palomine Support System: Shipping, Repairs, and Real Humans
We know that when you order a new BioThane long line, you're usually eager to start using it. That's why we prioritize Fast Shipping. We work diligently to get your handcrafted gear out the door and on its way to your doorstep as quickly as possible.
Free Repairs
We stand behind our work. While BioThane is incredibly tough, we know that accidents happen, sometimes a puppy gets a hold of a leash, or a piece of hardware meets an unexpected fate. Palomine Lines offers free repairs on our gear. You simply pay the shipping to get it to us, and we will fix it up and send it back. This is part of our commitment to sustainability and our ongoing relationship with our customers. We don't want you to have to buy a whole new leash if a simple repair can save it.
Friendly Customer Support
When you call or email us, you aren't reaching a call center. You are reaching real representatives who know the products inside and out. Whether you need advice on which length of long line is best for AKC Tracking or you have a question about our Shipping & Returns policy, we are here to help with a friendly, professional attitude.

Safety and Suitability: Setting Realistic Expectations
While we love BioThane, we want to ensure you use it safely. No leash is "chew-proof," and it is vital to monitor your dog while they are on a long line to prevent injury to you, your dog, or other animals and people in the area. We encourage all our customers to read our FAQs to understand how to best care for their gear.
For those interested in specific activities, we have tailored guides for various sports:
Join the Palomine Family
Choosing the right gear is an investment in your dog's safety and your own comfort as a handler. With 18 years of experience, a dedication to professional-grade BioThane, and a customer-first philosophy, Palomine Lines is proud to be your trusted source for leashes and long lines.
We don't just sell products; we provide the tools you need for a lifetime of adventure with your canine companion. Whether you are navigating cactus-filled trails, snowy mountains, sandy beaches, or the numerous environments in-between, our gear is built to perform.
If you have any questions about which BioThane leash is right for your specific dog or activity, please don't hesitate to reach out. We would love to hear from you and help you find the perfect match.
Ready to see the difference for yourself? Visit our shop and explore our full range of custom-made leads.
Important Safety Reminder: Always inspect your hardware and BioThane for signs of wear before every use. While our brass hardware is durable and our free repairs are always available, the safety of your dog depends on regular equipment checks and proper supervision. For more information on our standards, please review our Terms of Service.