A waterproof dog collar needs two things: a strap that cannot absorb water, and hardware that does not mind being wet. BioThane is a polyester webbing sealed in polyurethane, so nothing soaks in and it wipes clean in seconds. I build with it because it does what leather cannot do on a wet British walk, and because the colour range lets you build a piece that is yours. Every BioThane collar and lead is made to order at my bench in Oxford in two to six working days.
Most of the materials on my bench arrived through tradition. Rope splicing, British wool, vegetable-tanned leather: crafts with centuries behind them, and I came to them the way most makers do, by learning what has always worked. BioThane arrived differently. It arrived because of the weather.
If you walk a dog in England you already know the rest. The most beautiful collar in the world is the one that suffers most, because it is strapped to an animal whose favourite places are rivers, puddles and whatever that was in the hedgerow. Leather is a wonderful material and I will always work with it, but leather resents water. What I wanted was an all-weather alternative that gave up nothing in looks, and BioThane brought something I had not expected to care about as much as I do: a spectrum of colours that lets a customer build a piece specific to their own taste.
What actually makes a dog collar waterproof
Waterproof and water resistant get used as though they mean the same thing. They do not. Water resistant means the material sheds water for a while and takes it on eventually. Waterproof means water cannot get into the material at all.
BioThane is the second kind. The core is a woven polyester strap, dimensionally stable and very strong, sealed on both faces in a thermoplastic polyurethane coating. Water never reaches the polyester underneath, so the collar does not get heavy when wet, does not go stiff as it dries, and has nowhere to hold the bacteria that produce the wet dog smell. It was developed for harness racing and equestrian tack, where kit gets soaked, loaded and left outdoors, which is broadly what a spaniel does to a collar.
Nylon webbing is often sold as waterproof and is more honestly water resistant. Nylon is woven rather than coated, and a weave takes on water, grit and odour, particularly if it never fully dries. A coated strap has no weave to fill and no edge to fray.
BioThane against everything else on my bench
BioThane does not win every argument. It wins a specific one. This is how I actually rank the materials I work with, judged on the conditions each is asked to survive rather than on how it looks in a photograph.
| Material | In water | Cleaning | My verdict |
|---|---|---|---|
| BioThane, coated polyester | Nothing soaks in, no stiffening, no odour | Rinse under a tap, wipe, finished | The right answer for swimmers, beach dogs and mud |
| Vegetable-tanned leather | Survives a soaking, resents the habit of one | Conditioning, drying time, patience | Buy it for dry ground and character, not for rivers |
| British wool over a leather strap | Sheds light rain, never built for immersion | Not a wet weather piece, so I would not put it in the river | The best looking collar I make and the worst choice for a swimmer |
| Cotton and braided rope | Absorbs, dries slowly, holds grit in the lay | Needs real drying time between walks | Lovely in the hand, second best once it is properly wet |
| Uncoated nylon webbing | Waterlogs, frays at the cut ends, holds smell | Soak and dry, and it still smells | The material BioThane exists to replace |
Where BioThane started for me, on one strap
My first designs were non-adjustable paracord collars with safe lock buckles, each one made to size. They taught me the craft, but making to a fixed size has limits, for the customer and for the maker. The first BioThane I ever worked with was the adjustable strap on what became the personalised paracord collar. The woven cord stays beautiful, and the BioThane strap does the adjusting, takes the buckle and takes the weather. That one strap bought me adjustability, a far wider palette and a far wider group of dogs I could build for. It was BioThane proving itself quietly before it had a range of its own.
It has kept doing that. The Brampton wool and BioThane hybrid puts the wool where you look and the BioThane where the walk happens, which is the compromise I would make for my own dog in a wet week.
How I work it at the bench
Every BioThane piece starts from a set of templates I designed and 3D printed myself. When an order comes in I cut the roll with a rotary knife against whichever template the design needs, which keeps every piece consistent, order after order. The ends are cut to a point and the edges squared off, which has become my fingerprint on the material; plenty of makers finish BioThane, and no two of us finish it the same way. Holes go in with a classic punch, and the double cap rivets are pressed by hand on a spindle press. Instead of embossing, a woven cotton label sits embedded in the fold, so the branding is stitched into the construction rather than stamped onto the surface.
Working BioThane is nothing like working leather, and I value both for what they are. Leather is the more versatile material and I put far more detailed handwork into my leathercraft, but I will say it plainly: my classic leather collar will never last the way BioThane does on a dog that swims. Because BioThane is cut rather than woven, I can also build the Fixie to an exact neck measurement rather than a size bracket, and the wider strap suits long necks, which is why the Cotswold Rambler in the sighthound collars is built on a 38mm BioThane body.
The hardware question, fitting by fitting
Most collar failures I hear about are not the strap. They are the fittings. A BioThane strap will outlast most hardware, so the metal deserves as much thought as the colour. Every BioThane piece is customisable, which means you choose the finish, and I am not going to tell you that one metal is fitted across the range, because it is not. Here is what each option actually is.
| Finish | What it actually is | How it wears | My verdict |
|---|---|---|---|
| Solid brass | Brass all the way through, no coating | Dulls to a patina and stays structurally sound | The most corrosion-resistant fitting I use, so it is my pick for sea swimmers |
| Nickel-plated snap hooks | Plating over solid brass | Plating thins at the rub points and brass shows through | A safe choice, because what wears through is cosmetic |
| Nickel-plated buckles and D-rings | Plating over steel | Plating thins where it rubs, which is wear and not a fault | Fine for rivers and mud, less happy with a daily sea habit |
| Black | Zinc die cast snap hook, plated steel buckle | Marks at contact points and cannot be polished back | Choose it for the look, and accept the marks as part of it |
| Gun metal | Zinc die cast snap hook, plated steel buckle | Same as black, no way to bring the finish back | The quietest looking option, on the same terms |
| Rivets | Stainless steel, brass, or steel with a black or gun-metal finish | Stainless and brass have no finish to wear through; the black and gun-metal are surface finishes that mark at the contact points | Pick the one that matches the rest of your hardware |
One more thing worth knowing. Where zinc sits against brass or steel in salt water, galvanic corrosion runs faster than it would on either metal on its own. That is not a reason to avoid black or gun metal, it is a reason to rinse the whole collar in fresh water and dry it after a sea swim, which takes about ten seconds. Whatever finish you pick, the hardware is load-tested by its manufacturer, and the piece carries my twelve-month guarantee.
The range, and which piece suits which dog
The adjustable BioThane collar is the default: buckle, adjustment, your colours, and enough range to follow a young dog through the last of its growing. The Fixie is the minimal one, cut to an exact size with nothing to slip and nothing spare. The half check BioThane collar suits a dog that can reverse out of a flat collar, giving a limited amount of close without the bite of a full check.
On the lead side, the BioThane dog lead is the piece people underestimate. A wet rope lead in your hand for an hour is unpleasant in a way you stop noticing, and then never forget once you have walked a winter without it. The BioThane traffic lead is a short handle for close control at a road or in a car park, and it lives on a rucksack strap the rest of the time. All of it sits together in the waterproof collars and leads collection.
Sizing, because BioThane does not forgive a guess
Leather softens and moulds to a neck. BioThane does not, and it does not stretch with use either, so the fit you order is broadly the fit you keep. That makes measuring the one job worth doing slowly. Measure the circumference at the widest point of the neck, usually just below the ears, and allow two fingers of clearance. Too tight is uncomfortable, too loose and a determined dog reverses out of it under pressure. The measuring guide takes two minutes and has the worked examples in it. If the size is wrong when it arrives, I exchange it.
Cleaning, which is the shortest section here
Rinse it under a tap. Wipe it with a damp cloth. That is the entire procedure for the strap, and there is no soaking, no drying rack and no conditioner. Mud comes off cold. After salt water, rinse the fittings as well and dry them, for the galvanic reason above. This is where the practical gap between BioThane and everything else on my bench is widest, and it is why people who buy one BioThane piece tend to end up owning three.
When I tell people not to buy it
If your dog walks on pavements and dry paths, sleeps indoors and swims twice a year, BioThane is the wrong purchase. You will get more out of leather that ages or wool that looks like something. BioThane does not develop character. It looks much the same after five years as it did after five weeks, and for some owners that is the entire point while for others it is the problem. I would rather sell you the right collar once.
What owners of muddy dogs tell me
The reviews do this better than I can. Across 209 reviews at 4.99, the BioThane ones read the same way. One customer chose bright orange and lilac for a dog that likes to get wet, and describes it as rinsed off and as good as new. Another runs a Labrador through several walks a day and says it no longer matters how wet it has been, the collar and lead are always ready. A paracord and BioThane owner reports it resistant to muddy puddles so far, which for the dog in question I take as a serious field trial. About a third of my customers come back for a second piece, and a good share of those second pieces are BioThane, bought by someone who started with something prettier.
Everything is made to order at 70 Wolsey Road in Oxford and posted in two to six working days.
Frequently asked questions
What makes a dog collar genuinely waterproof?
The strap has to be sealed rather than woven. BioThane is a polyester webbing coated on both faces in thermoplastic polyurethane, so water never reaches the core. It does not get heavy when wet, does not stiffen as it dries, and has no weave to hold odour. Nylon webbing is water resistant rather than waterproof, because a weave takes water on eventually.
Is BioThane better than leather for a dog that swims?
For a swimmer, yes. Leather absorbs water, dries stiff, cracks at the fold points and can hold odour. BioThane is sealed, so nothing soaks in. If your dog is mostly on dry ground, leather is the more characterful choice and I would point you there instead.
Which hardware should I choose if my dog swims in the sea?
Solid brass. It is solid all the way through and it is the most corrosion-resistant fitting I use. Nickel-plated snap hooks are plated over solid brass, so they are a safe second. Black and gun metal snap hooks are zinc die cast, and where zinc sits against brass or steel in salt water the corrosion runs faster, so rinse and dry the collar after a sea swim.
Does a BioThane collar hold odour after muddy walks?
No. There is no weave for bacteria to sit in and no absorbent core, so the wet dog smell that builds up in nylon does not build up here. Rinse it under a tap and wipe it with a damp cloth. Mud comes off cold water.
Is a BioThane dog lead worth it if I already have a rope lead?
In a wet winter, yes. A rope lead soaks up river water and holds it against your hand for the rest of the walk. A BioThane lead does not, and it wipes clean instead of drying overnight. Most people keep both and reach for the BioThane one from October.
How long does a made-to-order BioThane collar take to arrive?
Two to six working days. Every piece is cut, riveted and checked at my bench at 70 Wolsey Road in Oxford before it goes out, the hardware is load-tested by its manufacturer, and the piece carries a twelve-month guarantee. If the size is wrong when it arrives, I exchange it.
If your dog finds every puddle, start here
BioThane Dog Collar →The Fixie →BioThane Dog Lead →Browse the collection →
0 comments