Most comfortable flat shoes/ ballet slippers?

I’m looking for a pair of super comfortable women’s flats or ballet slippers. Anyone have recommendations for really very comfortable shoes – the kind you could really walk in or go dancing in without blisters? I have flat feet so anything with any padding or arch support is a plus. A little bit of height with a tiny wedge or wide heel would be okay but not really more than an inch or so. Thanks for any suggestions!