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Underdog Biothane Martingale Collar


Underdog Martingale collars and handmade and use only the highest quality materials that will give you incredible longevity! Biothane synthetic material combines with a Sprenger martingale fitting and brass rivets and buckle to give you a high-quality collar that won’t break under strain from even the strongest of dogs.

A great training tool that can be easily moved from dog to dog without fiddly adjustments – simply adjust the singular buckle. 5 year guarantee on workmanship (this does NOT include chewed collars). Martingale Collars come in 3 sizes – each size is very adjustable and additional holes can easily be added to medium and large collars.

Please note: martingale collars should fit high on your dog’s neck, just behind their ears, rather than fitted loosely down toward their shoulders and chest.

Suitable for:

  • Small (Jack Russells, Cavaliers, Havanese, Mini and Toy Poodles, Whippets)
  • Medium (Kelpies, Cattle Dogs, Staffordshire Bull Terriers, Beagles, Cocker Spaniels, Greyhounds)
  • Large (Rottweilers, Labradors, Golden Retrievers, American Staffordshire Terriers, GSP’s, German Shepherds)

Benefits of Biothane:

  • More durable than leather
  • No maintenance required
  • Soft, flexible and comfortable
  • Waterproof
  • Strong – for even the strongest of dogs

*Please note: these collars should NEVER be left on your dog when unattended as they do have a tightening action and will not break under pressure.

Please speak to your Underdog Trainer or contact us for sales.

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COVID-19 Update:

As Melbourne moves through an easing of restrictions, we are permitted to operate many of our services in a limited capacity. We encourage you  to enquire about training for your dog but ask for your patience as we work through our waitlists and set new dates for classes. We look forward to being of assistance to you and your dog as soon as we are able to.

Our Critical Period Package for PUPPIES is currently available, please visit the page: Puppy Training Critical Period Package