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Small Dogs Sizes XXXS to XXL

PerfectFit Harnesses for the Perfect Fit

Designed to be the Ultimate walking harness, the machine washable Perfect Fit harness is made in the UK for the ultimate health, comfort and safety of your dog when you are out for a walk.

As most chihuahua and small dog owners are aware, the dog's throat is one of its most vulnerable body parts, particularly on chihuahuas where the trachea is tiny and can be prone to collapse under stress. 

The PerfectFit harness is made from top quality fleece to reduce movement and friction when your dog is walking on the lead so it really is a perfect fit. Unlike other leading brands the harness is evenly distributed across the chest, back and ribcage, and the snug fit has a calming effect on many dogs.

Chances of escape are dramatically reduced as the harness can be adjusted so the neck hole is smaller than the dog's skull.

Larger pieces can be bought separately so you can replace pieces as your chihuahua puppy, chihuahua or small dog grows or if you want a new top colour or if parts become chewed.

For details on measuring your dog for harness girth please see the PerfectFit video below paying close attention to exactly where to measure just a way back from behind the front legs.

On our clothing ranges we recommend measuring the widest part of the ribcage which is a different measurement.



Measuring Guide

Measure around your dog's neck where the collar sits as in the photo then around the girth as indicated here.


We offer four harness sizes for chihuahuas and toy dogs up to 6lb or 2.7kg in weight. These are 1-2, 1-4, 3-4 and 3-6 and are each sold as complete harnesses. We also offer each of the pieces separately - tops 1 & 3 and bases 2, 4 & 6.

We also have our 15mm range in 2 piece and 3 piece harness options.

Two piece harness sizes from the 15mm PerfectFit harness range to fit a wide range of small dogs are XXS-8, XXS-10 and XXS-12. These are also available in individual pieces to allow you to size up as your dog grows. Top XXS and Base Pieces 8, 10 or 12.

Three piece harness sizes from the 15mm PerfectFit harness range to fit larger chihuahuas and small terriers over 6lb are the XXS-XXS-XS and the XXS-XXS-S versions. Please consult each product specification for more details.

PerfectFit harnesses are not crash tested so we do not recommend using them in the car.

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