Purrfect Fit Size Guide
How to Measure Your Pet
Choosing the right size is essential when selecting clothing, collars, or harnesses for your dog or cat. We know it can sometimes feel a bit confusing — especially because we work with multiple premium brands, and each uses its own sizing chart.
That’s why every product with size options includes a clear size chart with the exact measurements for that specific item.
To choose the correct size, all you need is a few simple measurements taken at home.
What You’ll Need
The best results come from using a soft tape measure.
If you don’t have one, a piece of string measured against a ruler works just as well.
We recommend measuring your pet twice, as movement or small inaccuracies can affect the final result.
Essential Measurements
These are the key measurements you’ll need:
A – Back Length
From the base of the neck (where a collar sits) down to the base of the tail.
B – Neck Circumference
Where the collar naturally sits.
C – Chest Circumference
The widest part of the chest, just behind the front legs.

How to Measure Based on Product Type
Clothing (coat, sweater, hoodie, raincoat)
Focus on the back length.
Measure from the base of the neck to the start of the tail.
Your dog or cat should stand in a natural position.
Collar
The most important measurement is the neck circumference.
After measuring, add about 2–3 cm for comfort and proper movement.
Harness
The key measurement is the chest circumference.
Measure just behind the front legs and add 3–4 cm to ensure the harness fits comfortably without being too tight.
Our Tip
Measure once, choose with confidence.
Accurate measurements are the foundation of a perfect fit — for both you and your pet.
Write down the measurements and choosing sizes will always be easy.
And if you’re still unsure, we’re here to help. Just send us a message and we’ll be happy to guide you.
With Purrzo, everything fits Purrfectly. 🐾✨