• Yellow biothane dog collar for small breeds with a metallic buckle on a white background
  • clasp colour options
  • example of engraving
  • Measurement guide
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Mustard Small Breed Waterproof Biothane Dog Collar 21cm to 28cm Neck

Mustard Small Breed Waterproof Biothane Dog Collar 21cm to 28cm Neck

£18.00 GBP
£18.00 GBP
Sale Sold out
Taxes included.
Neck Size
Hardware
Size Chart -

Size Guide

Important Sizing Notes:

  • These collars are not adjustable to keep them as light and streamlined as possible.

  • Please measure your dog’s neck in centimetres (cm) — not their old collar — to ensure a perfect fit.

  • Use a soft measuring tape to measure the neck where the collar will sit, and ensure the tape is snug but not tight.
100% Waterproof 100% Waterproof
Easy To Wipe Clean Easy To Wipe Clean
Handmade In The UK Handmade In The UK
Odour Resistant Odour Resistant
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Made with small dogs in mind, our Mustard Small Breed Biothane Collar combines a slim 15 mm design with lightweight durability – perfect for toy and miniature breeds. Comfortable, waterproof, and handmade in the UK, it’s a collar built for everyday adventures.

Why Choose This Collar

  • Slim 15 mm width – perfect proportions for toy and small breeds (21–28 cm necks)
  • Smooth Biothane surface that won’t rub or snag delicate fur
  • 100% waterproof, mould- and bacteria-resistant, wipes clean in seconds
  • Free personalised engraving directly onto the Alumax clasp – no noisy tags
  • Handmade in Yorkshire by skilled makers, individually checked for quality

Product Features

  • Width: 15 mm
  • Thickness: 2.5 mm
  • Neck sizes: 21–28 cm
  • Hardware: Brass, Stainless Steel, Rose Gold, Antique Brass
  • Material: Biothane (PVC/TPU-coated, antibacterial, mould-resistant)
  • Personalisation: Free engraving on Alumax clasp

Complete the Look

Mustard Biothane Clip Lead – complete the set with a matching lead
Rope Dog Collars – Custom Made – handcrafted to size, ideal for small breeds
Shop Biothane Collars Collection – explore quick release, buckle, and slimline options

Mustard: warm, bright, and full of energy – a standout collar that brings a splash of sunshine to every walk.

UK Mainland: We offer free shipping on orders over £75. Beds are dispatched within 24–48 hours, while our handmade collars, accessories and leads may take 7–10 days during busy periods. Most orders arrive within 2–3 working days after dispatch.

*During busy periods bed orders may take 5-7 days to be dispatched

Please note that large/XL beds are only available for UK delivery.

International Shipping: Shipping costs are calculated at checkout, with delivery typically taking 5–10 days from dispatch. Please be aware that any import duties or taxes are the customer's responsibility.

For complete details, please see our Full Shipping Policy.

Returns: If you're not completely satisfied, you can return unused items within 14 days for a full refund. Please refer to our Returns Policy for more information.

We're happy to help if you have any questions about your order.

Cleaning: We do not recommend putting Biothane in the washing machine. All you need to do is wipe the surface with a damp towel, baby wipe, or sanitizing wipe. Most of the time you won't even need to clean it, but if it's wet or your dog has dragged it through the mud, we would advise giving the collar a clean.

About Biothane: Biothane is a durable, waterproof material that's naturally resistant to dirt, odours, and bacteria. Its non-porous surface makes it incredibly easy to maintain and perfect for active dogs.

Maintenance Tips: Simply wipe clean as needed - no special products or treatments required. The material is designed to stay looking fresh with minimal care.

Important Sizing Notes:

  • These collars are not adjustable to keep them as light and streamlined as possible.

  • Please measure your dog’s neck in centimetres (cm) — not their old collar — to ensure a perfect fit.

  • Use a soft measuring tape to measure the neck where the collar will sit, and ensure the tape is snug but not tight.

What is the best collar for small breed dogs?

A well-fitting, lightweight, and durable collar is ideal for small and toy breeds. Our 15mm Biothane dog collars are designed specifically for smaller necks — they’re waterproof, gentle on the coat, and won’t weigh your dog down.

Are these collars suitable for puppies?

No. These collars are not adjustable and are designed for fully grown small breed dogs. Puppies grow quickly, so an adjustable collar is better suited until they reach adult size.

Is Biothane a good material for small dog collars?

Yes. Biothane is lightweight, waterproof, mould-resistant, and easy to clean — perfect for small dogs that love exploring outdoors. It’s gentle on fur and doesn’t absorb odours or dirt.

What size neck does this collar fit?

These collars fit neck sizes between 21cm and 28cm. Please measure your dog’s neck in centimetres for the best fit. Do not use the length of an old collar as a reference.

How do I measure my dog’s neck for this collar?

Measure around the base of your dog’s neck using a soft tape measure. Allow space for one finger between the tape and the neck. Choose the closest size match — if in doubt, leave a note at checkout and we’ll customise the fit.

Are the collars adjustable?

No. To keep them ultra-light for toy breeds, these collars are not adjustable. That’s why it’s important to measure accurately before ordering.

Is the collar lightweight enough for toy breeds?

Yes. At just 15mm wide and made from soft, flexible Biothane, these collars are designed to be comfortable even for the smallest dogs.

Will the collar stretch or absorb water?

No. Biothane doesn’t stretch, even when wet. It stays dry and retains its shape, making it ideal for dogs who love puddles or messy walks.

Can I personalise the collar?

Yes. Each collar comes with free name engraving on the Alumax clasp — no need for a dangling tag. We recommend including your dog’s name and a contact number. 

Does it come with a matching lead?

Yes. Matching Biothane leads are available to complete the look. You can choose the same colour and hardware to create a stylish, coordinated set.

Where is the engraving and what can I include?

The engraving is placed on the front of the Alumax clasp. You can include up to 2 lines of text, with a maximum of 11 characters per line. We recommend your dog’s name and a contact number.

Real BioThane coated webbing. Zero smell. Zero soak. Maximum strength.

Waterproof BioThane: Stink proof, wipe clean, built to last

Why Choose Biothane for Our Dog Collars?

We designed our Biothane collars because you asked for a dog collar that doesn’t smell, doesn’t stay wet, and doesn’t fray. Biothane delivers on all of that. Made from a polyester webbing coated in a tough thermoplastic, it combines the strength of traditional materials with unbeatable waterproof performance.

What Makes Biothane Different?

• No lingering odour – Mud, river water, and everyday adventures rinse straight off. Smells never soak in.
• Wipe clean in seconds – A quick rinse or cloth restores the collar to new. No washing machine, no drying time.
• Seriously strong – High-tensile webbing and quality metal hardware keep dogs safe, even with sudden pulls.
• Comfortable for everyday wear – Flexible in cold, smooth in heat, and gentle on sensitive coats.
• Colour that lasts – UV-resistant pigments ensure vibrant shades and deep blacks.
• Vegan friendly – The look and feel of leather without animal products or maintenance.

In Short:

A waterproof Biothane dog collar means everyday practicality without compromise. No stink. No soak. No fuss. Just a collar that’s strong, stylish, and ready for the next walk within minutes of the last.

Waterproof BioThane: Stink proof, wipe clean, built to last