Size Guide

Use this guide to check the size of collar or harness you need for your dog.

Sizing your pet

It is important to get the correct size for your pet to ensure the best possible fit for your dogs comfort and safety.

Collars and harnesses are sized by the designers and each can use very different sizing scales. What is described as small in one brand, can often be a medium in another.

Dog breeds can also vary in size with some breed standards spanning many different size ranges. The best way of finding out which size is best, is to measure your dog yourself and apply simple rules of thumb.

Typical Breed Size

You can type in your dogs breed below and see typical sizes for them. These sizes are a guide only. Sizes within some breeds can vary considerably, so it's always best to measure your dog directly.

Measuring for a collar

You can measure the size of your dogs existing collar by measuring from the centre of the buckle, to the best fitting hole that your dog uses, or you can measure directly on your dogs neck.

Take a flexible tape measure and place around your dogs actual neck (not over their existing collar), insert a couple of your fingers for comfort and record the measurement. All our collars show 2 measurements between. Select the collar where your dogs neck size you have measured, comes between these two sizes.

If you have a puppy, it's important that you check the collar regularly to see if your puppy has outgrown it. It's also best to choose a collar slightly larger than you require as your puppy will soon grow into it.

Measuring for a harness

Make sure your dog is standing up before you start..

Stand over your dog and place one end of the tape measure on his spine, just above the widest part of his rib cage. With your other hand, wrap the tape measure behind his front legs and around his body, going underneath the widest part of his rib cage. Place this end next to the beginning of the tape. Put your thumb on the number that meets up with the beginning of the tape measure. This number is the girth measurement.

If your dogs measurement falls between two different sizes, select the smaller size for the best fit.

Brand Sizes

Collar Size To fit Width
Small neck size 25-40 16mm
Medium neck size 32-52 20mm
Large neck size 42-70 25mm
Collar Size To fit Width
Small 37cm neck size 28-33
Small 42cm neck size 32-39
Medium 48cm neck size 34-44
Medium 55cm neck size 40-50
Large 60cm neck size 45-55
Large 65cm neck size 50-60
Large 70cm neck size 55-65
Collar Size To fit Width
Small neck size 25-38 2cm
Medium neck size 30-50 2.5cm
Large neck size 38-60 3cm
Collar Size To fit Width
Size 1 neck size 20-24 1.5cm
Size 2 neck size 22-26 2cm
Size 3 neck size 27-32 2.5cm
Size 4 neck size 34-38 2.5cm
Size 5 neck size 40-46 2.5cm
Size 6 neck size 48-54 3cm
Harness Size To fit Width
Small girth size 35-45 2cm
Medium girth size 45-60 2cm
Collar Size To fit Width
Extra Small neck size 12-19 1.5cm
Small neck size 20-29 1.5cm
Medium Narrow neck size 30-39 1.5cm
Medium Regular neck size 30-39 2cm
Large neck size 40-49 2.5cm
Extra Large neck size 50-60 2.5cm
Collar Size To fit Width
Small neck size 20-32 12mm
Medium neck size 30-45 18mm
Large neck size 41-63 25mm
Harness Size To fit Width
Small girth size 25-39 1.2cm
Medium girth size 35-53 1.8cm
Large girth size 46-76 2.5cm

Your Dog

Enter the exact neck or girth measurement for your dog below and press the button to get the best size for your dog for each of the brands we stock.

Neck (cm)    Girth (cm)    Product