Size Guide
How to measure your pet
A good fit is essential for comfort and effective recovery. Measure your pet, check the size chart below, and choose the right CopperBody suit. Sizing is the same for dogs and cats.
Three measurements, one perfect fit

Weight
Weigh your pet on a scale. This is the most accurate measure for most breeds.
Back length
Measure from the cross (base of the neck / withers) to the start of the tail, following the spine.
Chest circumference
Measure around the widest part of the chest, just behind the front legs.
Standard size chart
Applies to Classic, Castration, 4-Legs, and Hind Legs styles. Castration is not available in size 00.
| Size | Weight (kg) | Back Length (cm) | Chest Circ. (cm) |
|---|---|---|---|
| 00 | 0 – 1.5 | 17 – 19 | 27 – 30 |
| 0 | 1.5 – 2.5 | 19 – 21 | 29 – 34 |
| 1 | 2.5 – 3.5 | 21 – 24 | 33 – 40 |
| 2 | 3.5 – 4.5 | 24 – 27 | 36 – 43 |
| 3 | 4.5 – 6 | 27 – 30 | 40 – 47 |
| 4 | 6 – 7.5 | 30 – 33 | 45 – 52 |
| 5 | 7.5 – 10 | 33 – 36 | 50 – 57 |
| 6 | 10 – 13 | 36 – 39 | 55 – 62 |
| 7 | 13 – 17 | 39 – 42 | 59 – 66 |
| 8 | 17 – 21 | 42 – 46 | 63 – 80 |
| 9 | 21 – 25 | 46 – 50 | 67 – 82 |
| 10 | 25 – 30 | 50 – 54 | 72 – 87 |
| 11 | 30 – 35 | 54 – 59 | 76 – 91 |
| 12 | 35 – 40 | 59 – 64 | 80 – 95 |
| 13 | 40 – 45 | 64 – 69 | 84 – 99 |
| 14 | 45 – 50 | 69 – 74 | 90 – 105 |
| 15 | 50 – 55 | 74 – 79 | 94 – 109 |
Cats: use the same chart. Most adult cats fall in sizes 0–3 depending on breed and weight.
Front Legs size chart
The Front Legs style uses combined sizes (0/1, 2/3, etc.) because the front-leg pattern spans a wider measurement range per size.
| Size | Weight (kg) | Back Length (cm) | Chest Circ. (cm) |
|---|---|---|---|
| 0/1 | 1.5 – 3.5 | 17 – 24 | 27 – 40 |
| 2/3 | 3.5 – 6 | 24 – 30 | 36 – 47 |
| 4/5 | 6 – 10 | 30 – 36 | 45 – 57 |
| 6/7 | 10 – 17 | 36 – 42 | 55 – 66 |
| 8/9 | 17 – 25 | 42 – 50 | 63 – 82 |
| 10/11 | 25 – 35 | 50 – 59 | 72 – 91 |
| 12/13 | 35 – 45 | 59 – 69 | 80 – 99 |
| 14/15 | 45 – 55 | 69 – 79 | 90 – 109 |
Fit tips
Between sizes? Go up
If your pet falls between two sizes, choose the larger size. A slightly roomier suit is more comfortable than one that is too tight.
Weight is usually best
Weight is the most accurate measure for finding the right size. However, for deep-chested breeds such as Greyhounds, Whippets, and Bulldogs, use chest circumference instead.
Check the fit
The suit should sit snugly but allow you to slide two fingers between the fabric and your pet’s body. It should not restrict movement or breathing.
Leg openings
Make sure the leg openings are not too tight. Your pet should be able to walk, sit, and lie down comfortably without the suit bunching or pulling.
Which style is right?
CopperBody suits come in five styles, each designed for different recovery needs. Your vet can recommend the best option for your pet's procedure.

Classic
Full-body suit covering chest, abdomen, and back. Ideal for abdominal surgery and general post-operative recovery.

Castration
Extended rear coverage for castration and perineal procedures. Uses the standard size chart.

4-Legs
Full coverage of all four legs plus body. Suited for orthopaedic recovery and skin conditions affecting the limbs.

Hind Legs
Targeted protection for chest, abdomen, back, hips, knees, hocks, and hind legs. Uses the standard size chart.

Front Legs
Targeted protection for chest, shoulders, elbows, carpals, and front legs. Uses the Front Legs size chart (combined sizes).
Not sure which size or style to choose?
Your vet can help you measure your pet and recommend the right CopperBody suit. Find a stockist near you or contact us for advice.
