Yeah, for the two years I did Wing Chun I made sure to get a one size smaller shoe fit, when it stretched out a bit it was just right and didn't come off with the kicks - but that said the WC kicks I was training in were all v low and not of round house nature. So depending on your style of kung fu, they may still be of issue with the kicks. A mate of mine who went to training with me was forever loosing his shoes, it was funny.
Re Elbowgrease's comment, seems to be a good idea but the WC shoes we had, and they must surely just be mass-produced for all styles (??) didn't have any loops for pulling on at the heel??
Yeah and the jacket is sweet! I bought a nice dress-style jacket along those lines while going through Hong Kong, not for training, more for going out and it looks damn good even on a white-devil fella