Ok so shoes dont matter - basically everything except barefoot is the just of it
Sorry but I don't think that is the consensus here. People are saying that, in the early stages of your flying, thin-soled shoes/boots with a bit of grip are best and that trainers might not be helping. Then, once you have got the hang of it, choice of footwear becomes less important and then you can fly in whatever works best for you and what is comfortable.
These are my boots! And just to make certain pilots really jealous; I have two pairs - one black, one brown!
Cheers
Whirls