Supakit Size Guides

Collar Size Guide

We have two kinds of collars for you to choose from - 'kitten' and 'adult'. Each one has a unique breakaway safety buckle tailored to your cat's weight:

Kitten Icon
Cats Weighing 1 kg - 2.5 kg

Adult Cat Icon
Cats Over 2.5 kg

Choose the kitten collar Choose the adult collar

It's really that simple! There's no need to measure your cat's neck for a Supakit collar – they're designed to be fully adjustable, ensuring a comfortable fit for cats of any neck size. Curious about the specifics? You can view the exact dimensions of our collars here.

Helpful Hint: As your kitten grows and crosses the 2.5 kg weight threshold, it's a good idea to switch to the adult collar. This reduces the likelihood of collar losses. Learn more about this transition here.


Harness Size Guide

The Supakit cat harness comes in three adjustable sizes, to cater for every shape and size of cat (even little kittens and chonky floof-monsters!). Watch the video or follow the steps below to pick your cat's perfect harness size:

Step 1: Take your cat's measurements

It takes just two simple measurements to find your cat's perfect Supakit harness size! Using a tape measure (or a piece of string that you measure on a flat ruler later), take the measurements below while your cat is standing up. Remember to draw the tape measure tight enough to compress any fur underneath!

Front Measurement

Back Measurement

Cat harness measuring guide

Measure from your cat's shoulderblades, around the front of their breastbone, and back again.

Cat harness size guide

Measure from your cat's shoulderblades, around the back of their legs, and back again. The tape measure should pass snugly behind their elbows.

Step 2: Compare your cat's measurements to the size chart

Once you've taken your cat's measurements, simply compare them with the size chart below

Kitten Icon

For kittens & petite adult cats

Adult Cat Icon

For average size cats

Large cat icon

For extra large cats


25 - 32 cm
10 - 12.5 inches

29 - 38 cm
11.5 - 15 inches

37 - 46 cm
14.5 - 18 inches


28 - 36 cm
11 - 14 inches

33 - 41 cm
13 - 16 inches

41 - 50 cm
16 - 20 inches

Harness Sizing FAQs