I think any type of "dressy" or more formal clothing is a problem in general. I know for me dresses are. Not standard slip dresses with no buttons or zippers (like maxi dresses) are fine and zippers in the back usually aren't a problem. For some reason dresses with a zipper on the side are a HUGE pain in MY SIDE!! They'll fit perfectly but thanks to my lovely boobs, won't zip (because the zipper is RIGHT THERE) but if I get one that does zip, it looks like a sack on my torso. It's a problem.