Last Updated on October 8, 2026 by admin
The Supakit cat harness is a UK-made step-in harness in genuine European leather or vegan cork, priced at £60 with the leash sold separately. It fastens with a single buckle, adjusts at four points and comes in three chest sizes. It suits owners who want a smart, low-bulk harness and will measure carefully; it is expensive next to nylon vest harnesses.
Supakit cat harness at a glance
Details below come from Supakit’s product page and official size chart, checked in October 2026.
| Feature | Supakit harness |
|---|---|
| Style | Step-in harness, single buckle, four-way adjustable |
| Materials | Genuine leather (sourced in Europe) or vegan cork, gold-tone tarnish-proof hardware |
| Weather | Leather is splashproof (light rain only); cork is waterproof |
| Colours | Leather: Emerald Green, Burgundy, Black, Mint Green, Rose Pink. Cork: Natural, Strawberry, Blueberry |
| Price | £60 for the harness; matching 1.2 m leash or 5 m retractable leash £35 extra |
| Ships from | Northampton, UK; prices shown in GBP with other currencies available |
| Returns | Within 30 days of delivery |
Sizes and how to measure your cat
Supakit sizes by chest and belly girth, not weight, and advises against choosing by weight because cats of the same weight can be very different shapes.
| Size | Chest | Belly |
|---|---|---|
| Small | 24–32 cm (9½–12½ in) | 26–34 cm (10¼–13½ in) |
| Medium | 27.5–36.5 cm (10¾–14¼ in) | 32.5–41 cm (12¾–16¼ in) |
| Large | 36.5–45.5 cm (14¼–18 in) | 40.5–48 cm (16–19 in) |
- Chest: run a soft tape from the top of the shoulder blades, around the front of the breastbone and back to the start.
- Belly: run the tape from the shoulder blades, around behind the front legs (snug behind the elbows) and back.
- Between sizes: Supakit recommends the smaller size for a snug, secure fit.
The range runs from kittens to large breeds such as Maine Coons and Ragdolls, but a big cat with a broad chest should be measured rather than assumed to be a Large. Our cat harness measurement guide covers the tape technique in more detail.
Design: what the step-in style means in practice
With a step-in harness, the cat steps its front legs through two loops and you close one buckle over the back. Nothing goes over the head, which many head-shy cats tolerate better than an overhead vest. The trade-off is that a step-in harness relies on a close fit: if the straps are loose, a cat that backs up hard can pull its legs out.
Supakit calls the harness escape-proof and says it gives “pressure-free chest support”. Treat “escape-proof” as a marketing claim rather than a guarantee. No harness is escape-proof on every cat, and at least one owner review describes a Maine Coon getting out despite a snug fit. Check the fit every time you put it on: you should be able to slide two fingers under the straps, and no more.
What owners say
Supakit has a TrustScore of 4.5 out of 5 from around 220 reviews on Trustpilot, though most reviews are about its collars rather than harnesses. The harness-specific feedback falls into a few themes:
- Look and build: owners often describe the harness and leash set as attractive and well made.
- Security: several reviewers say cats that slipped other harnesses stayed in this one; one experienced owner reported an escape anyway.
- Wear: a low-rated review reported visible wear after only a few uses.
- Fit: it needs to sit close, and some cats walk oddly in it at first, which is normal with any new harness.
Pros and cons
| Pros | Cons |
|---|---|
| Step-in design, nothing over the head | £60 before the leash, well above typical nylon harnesses |
| Single buckle, quick to put on once fitted | Leather is only splashproof, not for wet weather or water |
| Leather or vegan cork, slim and low-bulk | Leash costs £35 extra |
| Sized from kittens to large breeds | Step-in style needs a precise fit to stay secure |
| 30-day returns | Ships from the UK, so US buyers wait longer and pay in converted currency |
Who the Supakit harness suits
- Good fit: calm or already harness-trained cats, short garden walks, vet and travel trips where you want a neat harness, and owners who value leather or cork over nylon.
- Look elsewhere: determined escape artists, very wet climates (choose cork or a synthetic harness), and buyers on a tight budget. For alternatives, see our guides to escape-proof cat harnesses and kitten harnesses.
Getting your cat used to it
Any harness, however well made, only works if the cat accepts it. PetMD’s leash-training guidance follows the same pattern most behaviourists recommend:
- Leave the harness near your cat’s bed or food so it smells familiar.
- Put it on indoors for a few minutes with treats or play, and take it off while your cat is still relaxed.
- Lengthen sessions over several days or weeks, then attach the leash and let your cat drag it under supervision.
- Follow your cat on a loose leash indoors before moving to a quiet, enclosed outdoor space.
Always clip the leash to the back ring of the harness, never to a collar, and never tie a cat out. Microchip your cat and talk to your vet about vaccines and parasite prevention before outdoor walks. Supakit also advises removing the harness before applying spot-on flea treatments and leaving it off for 48 hours. Our step-by-step harness training guide and harness safety guide go further.
FAQ
How much does the Supakit cat harness cost?
£60 for the harness in leather or cork. A matching 1.2 m leash or a 5 m retractable leash adds £35.
Is the Supakit cat harness escape-proof?
Supakit markets it as escape-proof, and many owners report it holds well, but at least one reviewer’s cat got out. A correct, snug fit matters more than any label, and you should supervise every outing.
What size Supakit harness does my cat need?
Measure chest and belly girth and match them to the chart above. If your cat falls between sizes, Supakit recommends the smaller one.
Can a cat wear the Supakit harness all day?
No harness should be left on an unsupervised cat, because straps can snag. Put it on for walks and supervised outdoor time, then take it off.