Collar Size Guide

Collar Sizing for Cats & Small Dogs

🟩 X-Petite & Petite: Suitable for tiny kittens to petite cat breeds such as the Singapura.

🟪 Small & Medium: Most adult domestic shorthair cats will suit either a Small or Medium FeliFeed® collar, depending on their build.

🟨 Medium & Large FeliFeed® collars have a slightly deeper profile, making them suitable for cats with longer necks or a larger build, as well as miniature and small dog breeds that have a short neck span.

Some dog breeds that may suit the FeliFeed collar® include Yorkshire Terriers, French Bulldogs, Havanese, Poodle crosses and Pomeranians. For example, if your dog's neck circumference is around 14 inches (35 cm), the large size FeliFeed collar would be the most suitable option.

Check the size table below to find the best fit. Always measure your pet’s neck before purchasing.

Every FeliFeed® and CaniFeed® collar includes an adjustable Velcro® tab fastener, allowing you to fine‑tune the fit. Because of this adjustability, some pets may fit more than one size.

If you’re unsure which size to choose, please send your pet’s neck circumference and neck length, and we’ll help you select the most suitable option. Alternatively, we will gladly make a custom-size collar specially for your pet. Email details to Louise at hello@felifeed.co.uk

🟦 Reassurance
If the wrong size is ordered, we’re happy to exchange or issue a refund once the collar is returned in its original, unworn condition. Replacements are dispatched once the original collar is safely received.

If you prefer to order a new collar immediately, it will be sent straight away, and a refund for the original collar, less postage, will be processed once it is returned. Please refer to Returns (item 2) for full details.

For custom size requests and general enquiries, please complete the contact form to discuss your patient’s specific needs.

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Shop FeliFeed® Support Collars

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Collar Sizing for Medium & Large Dogs

⬜ XL and XXL CaniFeed® collars are designed for medium‑ to large‑sized dogs and offer an extended profile for longer necks.

These collars are available in breathable fabric or a waterproof version for dogs who have been cleared by their veterinary team to go out on short, supervised walks (see the photo of Nellie below).

Every dog is wonderfully unique, and neck sizes can vary even within the same breed.

The list below is designed as a helpful guideline to point you in the right direction.

Support collars include an adjustable Velcro® tab fastening, giving you some flexibility in the fit. Your dog may therefore sit between both sizes.

For the best and most comfortable fit, always measure your dog’s neck before placing an order.

🟦 Top UK Breeds That Fit the XL Size (35–50 cm)

Beagle
Border Collie
Cockapoo
Cocker Spaniel
English Setter
Golden Retriever
Greyhound (most females)
Labrador Retriever
Springer Spaniel

🟥 Top UK Breeds That Fit the XXL Size (43–62 cm)

Bernese Mountain Dog
Doberman Pinscher
German Shepherd
Greyhound (larger males)
Irish Wolfhound (smaller individuals)
Rhodesian Ridgeback
Siberian Husky

🟩 Small or short‑necked dog breeds that are better suited to the FeliFeed® collar:

Boston Terrier
Dachshund (Miniature & Standard)
Havanese Poodle cross
English Bulldog
French Bulldog
Pomeranian
Pug
Shih Tzu
Staffordshire Bull Terrier
Yorkshire Terrier

🟦 Reassurance

If the wrong size is ordered, we’re happy to exchange or issue a refund once the collar is returned in its original, unworn condition. Replacements are dispatched once the original collar is safely received.

If you prefer to order a new collar immediately, it will be sent straight away, and a refund for the original collar will be processed once it is returned. Please refer to Returns (item 2) for full details.

For custom size requests and general enquiries, please complete the contact form to discuss your patient’s specific needs.

Each support collar is hand-cut and made at Mabel Green Studio.

As a result, there may be slight variations in the finished size.

Note: Measurements are shown in metric / centimetres

COLLAR SIZE	NECK SIZE	COLLAR LENGTH + TAB	COLLAR DEPTH
X-PETITE	11 - 18	16 + 5	3
PETITE	13 - 20	22 + 5	4
SMALL	21 - 26	29 + 6	5
MEDIUM	26 - 35	33 + 7	5
LARGE	32 - 40	38 + 7	5
XL	35-50	44 + 12	10
XXL	43-62	54 + 12	10

Black and white cat wearing a padded O-Tube FeliFeed collar

Mouse, a large domestic shorthair cat with a neck circumference of 26 cm, wears the medium-sized FeliFeed® Support Collar.

👉 See our Visual Guide: Which Collar Might Fit Your Cat

Greyhound wearing a wide green collar on grass.

Nellie is wearing the waterproof CaniFeed® Support Collar in size XL.

🛡️CaniFeed® and FeliFeed® are design-protected. Trademarks and copyrights are registered.

How to Measure Your Pet’s Neck Circumference

Choose a calm moment — ideally when your pet is relaxed or resting.
Use a soft tape measure and wrap it gently around the base of the neck, where a collar would usually sit. Measure close to the skin, not over bulky fur.
Check the fit by slipping two fingers between the tape and your pet’s neck.
Note the measurement in centimetres, rounding up if your pet is between sizes.
Repeat once more to confirm accuracy.

How to Measure Your Pet's Neck Length

Use a soft tape measure to find the distance from the base of the skull (just behind the ears) down to the top of the shoulders. This gives you the vertical length of the neck — helpful when choosing between collar sizes with different depths.

Important Considerations

Use a soft tape measure for accuracy, or wrap a piece of string around the area, then measure it against a rigid ruler.

Check the fit regularly, especially if your pet is growing or their weight changes.

🛡️CaniFeed® and FeliFeed® are design-protected. Trademarks and copyrights are registered.

Visual Guide - choosing the right size for your cat

Every cat is unique, but this visual guide offers a helpful starting point.

We’ve grouped familiar cat breeds by typical adult size to help you estimate which FeliFeed Collar might suit your cat. These categories are based on average adult neck sizes and weights, so they’re only a general reference. For the most accurate fit, please follow the measurement advice above and measure your own cat.

Kittens usually suit the X‑Petite or Petite sizes. Most domestic shorthairs will fit either the Small or Medium collar, depending on their build. If your cat has a longer neck, consider the Medium size — the Velcro fastener allows the collar to be adjusted for a comfortable, secure fit.

Image showing tiny kitten wearing the petite-sized FeliFeed support collar

Kittens: X-Petite or Petite

The FeliFeed collar range starts with the X-Petite size, suitable for tiny kittens weighing from 600g.

This Singapura cat breed is suitable for the petite-sized FeliFeed collar.

Singapura: Petite collar

The smallest recognised breed.

The Singapura is an active and affectionate cat known for its playful, curious, and intelligent personality. It has a distinctive sepia-toned ticked coat and large eyes, and remains lively well into old age.

These social cats thrive on human interaction and make excellent companions, often enjoying "helping" with tasks and wanting to be involved in everything their owner does.

Weight: 1.8–3.6 kg · Neck: 16–22 cm · Ideal fit with FeliFeed Collar® size: PETITE

Domestic Shorthairs come in almost every colour — from black, white and tabby to red and orange.

They’re sturdy little cats with broad shoulders, muscular bodies and strong legs built for pouncing. Their round heads, wide‑set ears and expressive eyes (sometimes even two different colours) give them a classic, friendly look. Their short, shiny coat is low‑maintenance and always sleek.

Because they’re a blend of many breeds, you might spot hints of different ancestry in their features.

Ideal fit with FeliFeed Collar® size: SMALL or MEDIUM

Domestic Shorthair: Small or Medium

Domestic Shorthairs come in almost every colour — from black, white and tabby to red and orange.

They’re sturdy cats and come in lots of sizes. They generally have broad shoulders, muscular bodies and strong legs built for pouncing.

Their round heads, wide‑set ears and expressive eyes (sometimes even two different colours) give them a classic, friendly look.

Because they’re a blend of many breeds, you might spot hints of different ancestry in their features.

Ideal fit with FeliFeed Collar® size: SMALL or MEDIUM

The Main Coon cat breed is suitable for the large sized FeliFeed collar.

Maine Coon: Large collar

The Maine Coon is widely recognised as the largest non‑hybrid domestic cat breed. Often referred to as “gentle giants,” they are fully domesticated and loved for their friendly, sociable nature.

Neck Circumference Guidelines:

Small / Young Maine Coons: 18–22 cm

Average Adult Maine Coons: 21–31 cm

Large or Broad‑Necked Adults: 25–40 cm

Typical neck size range: 21–40 cm

Recommended FeliFeed Collar® size: LARGE

Custom sizing is available to ensure an optimal fit for your patient.

E-mail: hello@felifeed.co.uk

Read The Story — inspired by our work with Manchester Cat Clinic