This pattern is amazing! I used an invisible zipper, which is so much easier to use if you have the invisible zipper foot for your machine. I did add elastic to gather the front area beneath the bust line and the backside as well. It helped to give the blouse a more fitted feel (instructions to do this are included in the pattern). EVERYTHING I have made from a Lila Tueller pattern fits perfectly. Her patterns are by far the best I have ever sewn!