Biothane K9 Working Dog Leash 33ft Cerulean Blue - Waterproof Long

In this review of the Biothane K9 Working Dog Leash, the bottom line is simple: handlers who need a long, waterproof, easy-to-clean training line for tracking, Schutzhund, or general field work will appreciate this leash most. The single biggest reason to buy is its waterproof coated construction that sheds water and odor while remaining flexible in heat and cold, so it performs reliably after swampy retrievals or wet training sessions.

Key Features

• Waterproof coating: The leash surface repels water and dries quickly so it stays smell-free and ready for the next session without absorbing muck.
• Flexible core: A flexible substrate core bonded to the coating keeps the line supple even in extreme cold and prevents softening in high heat.
• Solid brass snap: Brass hardware resists rust for dependable connections in wet or salty environments, suitable for working dogs.
• Multiple sizes and colors: Available in many color, width and length combinations so handlers can match the leash to specific dogs and tasks.
• Durability vs leather: Built to outlast leather in wet and messy conditions while requiring far less maintenance.

Who It's For

This leash is aimed at serious trainers, search and rescue handlers, and sport competitors who need a long, low-maintenance line for tracking, obedience and protection work. Its 33ft length and odor-proof coating make it ideal for tracking practice and off-lead control drills where a visible, durable line is necessary.

Those who need a chew-proof tie out or a permanent tether should look elsewhere, since the manufacturer explicitly warns this material is not chew proof and not intended for tie out use. Casual pet owners who only need a short daily walk lead may also prefer a shorter, lighter option.

Pros & Cons

Pros

• Waterproof surface that stays smell-free and dries fast after getting wet.
• Flexible and stable in a wide range of temperatures, staying pliable in cold and not softening in heat.
• Solid brass snap and hardware that will not rust in wet use.
• Comfortable feel in hand with a soft texture reported by users.

Cons

• Not chew proof and should not be used for tie out or as a permanent tether.
• Heavier and longer than a standard walking leash, so it is less convenient for short, casual outings.

Specifications

Our Verdict

The Biothane K9 33ft leash is a practical, value-oriented choice for trainers and handlers who need a long, dependable line that resists water and odor while staying flexible in varied conditions. It is not a chew-proof tie out, but for tracking, obedience and working-dog tasks it delivers durable performance and low maintenance.

Frequently Asked Questions

Is this leash waterproof?
Yes, the coated Biothane surface repels water and dries quickly to remain odor-free.

Can I use this as a tie out?
No, the manufacturer warns it is not chew proof and should not be used for tie out.

Will the brass hardware rust?
No, the leash uses solid brass hardware designed to resist rust in wet or salty conditions.