There was a time when it was poofter boots only in clubs, no sneakers. seems thats changed these days. the bouncer at the stag didnt let me in cause i was wearing my business shoes, n said they prefer sneakers.
Often its another issue they have with you, at red square a guy got denied entry for his spikey hair while i was standing a few people back sporting a large mohawk having a chick in your group also helps.