Any can cooler that actually fits well?

[conversant]

Hello!
I am looking for keep cool:

1. 330ml cans (Pepsi etc)
2. 500ml Buxton water bottles

I see most cost £25 which is really extortionate or they are neoprene sleeves which I double will be convenient.
I bought some other coolers but they have very poor fit for Pepsi etc (they are either very loose or struggle to fit).

Do you use any particular or have you seen anything related? I really want to just put the Pepsi can and let it slide in immediately without huge effort but also not to be juggling and be loose inside the cooler.

Thanks!