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The Perfect Size Guide For Your Best Friend

At The Big Pet Shop, we understand that every pet is different. Whether you’re heading out for relaxed neighbourhood walks or longer countryside adventures, the right fit is essential for safety, comfort, and freedom of movement.

3 Simple Steps to Measure Your Companion

Before ordering, please use a flexible measuring tape. If you don't have one, use a piece of string and measure it against a ruler.

  • The Neck: Measure the circumference where a collar would naturally sit.
  • The Chest (Girth): The most important measurement for our harnesses. Measure around the widest part of the ribcage, usually right behind the front legs.
  • The Length: Measure from the base of the neck to the base of the tail.

The Golden Rules of Fitting

The Two-Finger Rule

Once the harness or collar is fitted, you should be able to comfortably fit two fingers between the gear and your dog's body. This ensures it is secure enough for safety but loose enough for breathing and movement during long Dorset hikes.

Don't Guess by Breed:

A "Dorset Lab" can vary wildly in size from a "London Lab." Always use your tape measure!

Consider the Coat:

If your dog is due for a summer clip or has a very thick winter coat, factor in an extra 1-2cm of wiggle room.

Safety First:

For the Glow Brightβ„’ LED Harness, ensure the LED strip is visible and not tucked under a fold of fur for maximum 360Β° visibility.

Still Unsure About the Fit?

We’re proudly based here in Dorset and know our products inside out. If you’re unsure between sizes for a particular breed, our team is here to help.

Simply start a conversation using the chat button in the corner of any page, get in touch via our contact page, or email us at info@thebigpetshop.com.

Joseph and the team are always happy to guide you in choosing the right fit before you place your order.