That’s a great idea to have coloured bands. I think it would be very useful.
I was in a sauna wear you were given a small coloured micro fibre towel that worked in the same way. Makes it a lot easier and more fun. Which is why we all go!
I also like the idea of bottoms putting the band on there ankle and tops, vers and others wearing on there wrist. A simple sign in the changing room explaining the system is all it takes.
Please bring in the coloured bands 52. It would make the experience a lot better.