Kinfolk Leather
Slip Dog Collar - Waterproof BioThane® Custom Dog Collar
Slip Dog Collar - Waterproof BioThane® Custom Dog Collar
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✦ Two functions in one collar – use as a traditional slip collar by attaching the lead to the O-ring, or clip to both the O-ring and D-ring for a standard, non-tightening fit.
✦ Custom made for your dog – crafted by us, in our NZ workshop, to your dog’s exact measurements for a comfortable, dependable fit.
✦ Clean, minimalist design – simple, functional, and free from unnecessary bulk, making it easy to use and easy to live with.
✦ Genuine BioThane® for everyday reliability – waterproof, odour-resistant, and easy to clean, ideal for daily wear and outdoor use.
✦ Premium solid brass hardware – rust-proof O-rings and D-ring chosen for durability and long-term performance.
✦ Optional integrated nameplate – hand-stamped in solid brass or stainless steel and securely riveted, keeping your dog’s details clearly visible.
Materials & Craftsmanship
Materials & Craftsmanship
BIOTHANE®
BioThane® is a premium brand of coated webbing, created by bonding a PVC or TPU (thermoplastic polyurethane) coating to a polyester or nylon core. The result is a strong, durable, and waterproof material that’s lightweight, easy to clean, and resistant to chewing and scratching.
We only use genuine BioThane® because of its proven quality and reliability – unlike cheaper alternatives on the market, it maintains its strength, finish, and performance over time.
HARDWARE
Premium hardware, cast from solid brass, selected for maximum strength to ensure our products remain rust-free for life. All hardware is kept securely in place with strong solid brass rivets.
Solid brass is a natural metal so our "gold" hardware may arrive with a little tarnish, especially when travelling snugly against leather. This is completely normal and easily polished – a quick wipe brings back the shine. Over time, brass also develops a warm, natural patina that many owners love. If you prefer hardware that stays bright without patina, you may like to choose our silver option instead (nickel-plated brass or stainless steel).
CRAFTSMANSHIP
Our dog collars are custom made with quality craftsmanship and thoughtful design that prioritises your dog's comfort and safety.
Our nameplates are hand-stamped. Minor tooling marks or inconsistencies in the stamping enhance the unique charm and human element of your custom dog collar.
Collar Width - Size Guide
Collar Width - Size Guide
Not sure what width collar your dog needs? Here’s a simple guide to help you choose the best fit for your dog — whether you’re after a soft puppy collar or something sturdy for a strong puller. We’ve included recommendations for both our leather dog collars and BioThane® dog collars so you can pick a width that’s comfy, practical, and looks great too.
Leather Dog Collars

As a general guide, we recommend that if your dog’s neck circumference is:
- Less than 22cm (8.5”) or a puppy under 3 months old, choose a soft leather puppy collar.
- 22 - 28cm (8.5 - 11”), choose a 1/2” leather collar.
- 28 - 34cm (11 - 13”), choose a 3/4” leather collar.
- 34 - 41cm (13 - 16”), choose a 1” leather collar.
- 41 - 48cm (15 - 19”), choose a 1 1/4” leather collar.
- 48cm (19”) and larger, choose a 1 1/2” leather collar.
BioThane® Dog Collars
The BioThane® range comes in widths of 1/2”, 3/4”, and 1”. Because BioThane® is stronger than leather, these widths are suitable for a wider range of neck sizes. When choosing a width, you can focus more on the look you prefer and the comfort of your dog, as the strength will be adequate regardless of the size.

- 1/2” BioThane® Collar: Suitable for necks up to 35cm (14”).
- 3/4” BioThane® Collar: Suitable for necks from 28cm (11") - 40cm (16").
- 1” BioThane® Collar: Suitable for necks from 35cm (14") and beyond. This width is highly recommended for most medium and large dog breeds.
General Tips:
- Wider collars are stronger, so please consider this when selecting the width. For example, do not use a 1/2” collar for a medium-sized dog; choose at least a 3/4” collar or larger.
- For medium-sized breeds and larger dogs, especially those that have a habit of pulling on the lead, we highly recommend choosing one of our D-End Dog Collars. These collars provide an additional layer of leather to pull against when attaching a lead to the dee ring, offering extra strength and durability to handle stronger pulling.
Customisation Options
Customisation Options
WIDTH
Each collar is crafted to fit the dog that will wear it. Please see our Size Guide if you need help choosing a suitable width. The length will depend on the neck circumference of your dog.
Break Strength (approx.):
1/2" (13mm): 225kg
3/4" (19mm): 340kg
1" (25mm): 450kg
The BioThane® thickness is 2.5mm.
COLOUR
Your choice of MANY colours of waterproof BioThane® strapping.
HARDWARE
Your choice of either gold (solid brass), silver (nickel-plated solid brass) or matte black (PVD solid brass) hardware.
NAMEPLATE
If you would like a nameplate added, your dog's details will be hand-stamped and clearly seen on the solid brass or stainless steel nameplate. The standard placement of the nameplate is directly opposite the O Ring hardware, visible on the top of your dog's neck. However, if you would like a different placement just let us know - we can attach it wherever you like.
Nameplate Dimensions:
Small (for 1/2" wide collars) - 50 x 9.5mm - up to 2 lines of information in 2.5mm text
Large (for 3/4"+ wide collars) - 70 x 16mm - up to 3 lines of information in 3mm text.
Is this suitable for your pet?
Is this suitable for your pet?
This slip collar is designed to be used under supervision when walking your dog. If you are unfamiliar with slip collars, please choose another of our custom dog collar styles instead.
If your dog has a history of being extremely tough on collars, such as excessive pulling behaviour, we recommend using a specialty collar when attached to a leash or tie-out and keeping this biothane dog collar for 'good'. While our collars are extremely sturdy, and will withstand forceful tugging, there are determined dogs out there for which any collar is no match.
Strap Replacement Service
Strap Replacement Service
All of our collars and leads are handmade in our own workshop, which means we can repair, resize, or refresh them at any time. When you’re ready for a new look, we can replace the strap and reuse your existing hardware - giving your custom piece a new lease on life.
How To Measure Neck Size
How To Measure Neck Size
Getting the size right means a better fit and a more comfortable collar for your dog. Here's how to measure your dog’s neck so we can make their collar just right — plus tips for growing puppies.

We strongly suggest providing an accurate measurement when placing your order. Old collars can stretch or sit differently, so measuring them often gives an inaccurate size — a quick neck measurement using the guide below will give the best fit.
1. Using a soft tape measure, record the circumference of the neck at the point where a collar would naturally lie.
2. Pull the tape so that it is snug but not tight. Record the measurement.
3. Enter this measurement in the personalisation text box when prompted. This measurement will be the middle hole of the collar, we will add at least another two holes either side.
Puppies - If your dog is a puppy, please let us know and we will make an allowance for growth when sizing the holes for the collar. Please feel free to give us a range (up to 12cm, i.e. 24-36cm) so that we can make sure there are enough holes to suit your dog's growth. We can be very flexible with the number of holes provided in the collar.
Customer Satisfaction Promise
Customer Satisfaction Promise
We believe in our products and stand by the quality of workmanship, craftsmanship and materials in each one. See our Customer Satisfaction Promise for more information.
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