Sometimes I think Flower should have a sweater to keep her warmer with the arthritis. But there is no way her arms can go through sleeve holes or anything over her head.
She almost needs a little cape with one strap that can go around her upper chest so all her legs are free.
I've seen things like this in pet stores for small dogs that can probably work for cats but they do need a period to adjust to it first.
Actually that reminds me, Stray (the video game) has one of the best portrayals of a cat adjusting to a harness for the first time.
Stray - Equipping the harness
YouTube video by Turbou
I had a cat who I placed in a harness when I first got him as a kitten. It was meant for a very small dog. It was helpful for rescuing him from a few tight spaces he got into. We were dog people who needed to be able to corral the cat for trips etc and wanted him to wear id tags.
