Perfect Fit Modular Fleece-Lined Harness - Part 1, Girth Strap
Step 1 is to select the correct girth piece for your dog
The front ring is designed to be used with a double-connection leash
The front ring is designed to be used with a double-connection leash
The front ring is designed to be used with a double-connection leash
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Perfect Fit Modular Fleece-Lined Harness - Part 1, Girth Strap

$13.99 - $21.99

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About the PerfectFit Harness

The PerfectFit Harness is the ultimate walking harness. It is recommended by vets and trainers all over the world, and was voted #1 Harness by the Whole Dog Journal in multiple years! Made in England, the Perfect Fit is a modular system of interchangeable pieces which means it is possible to fit all shapes, ages, and sizes of dogs. You can create a fleece-lined harness that is perfectly fitted to your dog so it's snug, safe, and comfortable. 

With your dog’s health, comfort, and safety in mind, the PerfectFit Harness has been designed with a Y-shaped front so that pulling force is evenly distributed through the chest rather than the soft tissues of the neck and throat. With no straps cutting across the front legs, your dog will have full freedom of movement to enjoy the walk.

 IMPORTANT! There is a D-ring on the front piece so that you can use a double-connection leash, and have two points of connection, to improve "steering" and distribute any pulling force more evenly. Please note that the harness is NOT designed for the front D-ring to be used on its own; ONLY use the front ring only with a double-connection leash.

Features:

  • Clips around dog's neck; you do NOT need to put it over dog's head
  • Adjustable in 5 different places
  • Pieces can be replaced as a young dog grows
  • Front piece comes with a front D-ring to use with a double-connection leash
  • Safe for amputee dogs
  • Difficult for canine escape artists to get out of
  • Calming for excitable dogs
  • Made in the UK from comfortable, soft, high-quality fleece
  • Machine washable at 86ºF (30ºC); line dry

A Perfect Fit Harness is constructed from 3 individual pieces—top, front, and girth—which clip together to make a complete harness. 

Step 1: Select Your Girth Strap

There are three widths of webbing in the Perfect Fit system with appropriately sized buckles and clips. Within each size of webbing, there are different sizes of girth pieces. Look up your dog's girth measurement in the webbing width range that is appropriate for your dog based on his size and whether he is a strong puller. There may be more than one choice of girth strap for your dog, so also consult the Perfect Fit Harness Selection Guide for girth size recommendations for different breeds and types of dogs. If the breed chart recommends one size up from your dog's girth measurement, we recommend going with the larger girth strap to ensure there is enough fleece padding on the strap to protect your dog's skin.

 Webbing Width  Appropriate for  Girth (inches)  Perfect Fit Size  Girth (cm)
15mm (.59")
Perfect Fit
Small dogs that do not pull hard 12.5 - 15.5 XS 32 - 40
15.5 - 20 S 40 - 52
18 - 23 M 46 - 59
20mm (.78")
Perfect Fit
Small dogs that pull hard
Medium dogs
Large dogs.
17.5 - 21.5 S 45 - 55 
‌20.5 - 25 ‌M ‌53 - 65
‌24 - 30 ‌L ‌62 - 76
‌29 - 33.5 ‌XL ‌74 - 86
‌40mm (1.57")
Perfect Fit
‌Very strong pullers
Large dogs
Giant breeds.
2‌5 - 33 ‌M 6‌4 - 85
‌29 - 36 ‌L ‌74 - 93
‌33 - 41 ‌XL ‌85 - 106
36 - 47 XXL 93 - 122

The Next Step

Once you have selected your girth strap, you need to select a front piece.

Using a flexible measuring tape, measure snugly about 2" behind your dog’s front legs all the way around him. You are measuring the circumference of his body, the girth, like measuring a person for a belt. Be sure that your dog is standing squarely.

There are three widths of webbing in the Perfect Fit system with appropriately sized buckles and clips. Within each size of webbing, there are different sizes of girth pieces. Look up your dog's girth measurement in the webbing width range that is appropriate for your dog based on his size and whether he is a strong puller. There may be more than one choice of girth strap for your dog, so also consult the Perfect Fit Harness Selection Guide for girth size recommendations for different breeds and types of dogs. If the breed chart recommends one size up from your dog's girth measurement, we recommend going with the larger girth strap to ensure there is enough fleece padding on the strap to protect your dog's skin.

 Webbing Width  Appropriate for  Girth (inches)  Perfect Fit Size  Girth (cm)
15mm (.59")
Perfect Fit
Small dogs that do not pull hard 12.5 - 15.5 XS 32 - 40
15.5 - 20 S 40 - 52
18 - 23 M 46 - 59
20mm (.78")
Perfect Fit
Small dogs that pull hard
Medium dogs
Large dogs.
17.5 - 21.5 S 45 - 55 
‌20.5 - 25 ‌M ‌53 - 65
‌24 - 30 ‌L ‌62 - 76
‌29 - 33.5 ‌XL ‌74 - 86
‌40mm (1.57")
Perfect Fit
‌Very strong pullers
Large dogs
Giant breeds.
2‌5 - 33 ‌M 6‌4 - 85
‌29 - 36 ‌L ‌74 - 93
‌33 - 41 ‌XL ‌85 - 106
36 - 47 XXL 93 - 122

To make an exchange or accept a return, we require that the harness piece be in the same pristine condition as when it arrived with you.

We understand that when you try the harness on your dog and adjust it, the harness pieces may get a little hairy. But if the harness has been worn for more than just a proper fitting, or is in a different condition then when you received it, we will NOT be able to make a free exchange or give a full credit for a return.

  • Returned harness pieces that require more cleaning than using a lint brush to remove a little bit of hair are subject to a 30% restocking fee.
  • Returned harness pieces that are damaged or worn are subject to a 50% restocking fee.

Before you return a harness piece, we recommend watching the Measuring & Sizing video to ensure that you have adjusted the harness correctly.

If you live in the USA and are making an exchange, you will pay for the return shipping to our offices and Clean Run will pay the shipping cost to send the new size back to you.

Customer Reviews

Average Rating
5/5 with 3 reviews

Works great for my Papillon with collapsing traches
The customer service at Clean Run is awesome! I emailed them about my 8 yr. old Papillon with a collapsing trachea and they helped me figure out which harness would be best for her. Because it comes in different pieces and sizes they were able to piece together a perfect fit!! Thanks for your help and a great product. She accepts the harness readily, and seems so much more comfortable in it.
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Back to fit my new dog
Fit my rottie mix well and is strong and secure enough to hold up to her pulling (clipped in front). Once she was walking easily, I could clip from the top. The padding on the 40mm wide one is great, although over time it can flap over and not stay in place. I'm back buying new pieces to fit my new Belgian malinois, who is very strong and another puller on leash. I'm confident that this will stand up to her abuse and help me teach her to walk well. And if she suddenly bolts after something, this harness will help me keep her close.
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Very comfortable
I have an American Bully and it’s hard to find a perfect fit. This harness has a great fit and look. The 2 attachment points allow for better control than 1. I buy 1 for my Mastiff puppy when he is a bit older.
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