The original skirt was large and very long, and had waist darts for shaping. All I did was cut it short from the bottom to reuse the hem and added the casing and elastic. I was pretty stupid and didn't line it, so it rides up with tights. For summer that's fine, but I wear tights and leggings all the time right now, and a slip would be so nice! It's one of those things that I really need to make (my mom has a ton of slip fabric) but isn't exciting enough to make instead of a cute top or something. Oh well, I'll get to it eventually!