The harness adjusts great and even fit her when she was 6 months old. It has good firm connections at the neck and under their arms. The clasp on the leash is unusual looking and makes it feel different than a dog leash. It is a good material and the colorful design is really pleasantly done. I checked and the underside of the harness (the side on her body) has smooth transitions so it doesn’t snag her fur or skin.
If I had one /complaint/ then the neck adjustment is the wrong range. You can tighten the neck beyond the smallest setting for a kitten but the adjustment strap on the outside pops out (totally aesthetic and not a real problem, my cat grew up and it doesn’t happen anymore). That’s what is happening when I tightened it on my wrist in the video, it is smaller than the design but still works if you wanted to start training early.
One night when I wasn’t watching she slipped an arm out of the chest strap but I tightened the strap and haven’t had an issue since. There is a mental block against a well fitting harness on a fluffy cat but if you can slip more than a couple fingers under the loop there is probably too much room. The first time she wore the harness she duck-walked but after a bit of positive reinforcement and with more time she acts totally normal about it. As people have said the harness does lean to one side or another as she wanders in new directions but she doesn’t seem to mind and if it does bother you the only solution is to follow closely behind them keeping the leash at a specific angle.
We were so pleased to have an option other than crating our cat to go to the vet or anywhere else. It is easy and pleasant to introduce her to new surroundings or take her in the car, just like how dogs are treated. She does not walk well on the leash but we haven’t attempted to train her. Mostly our cat gets more freedom and is learning to be flexible. She is not treated like a scared prisoner in a portable cage to see new things from behind bars. Let your cat be part of the world!