I ordered this costume for halloween to match my daughters ladybug costume I bought for her. I was very disappointed when I  received it and it was not for a 2-8. I am a size 8 and it wasn't working for me, it would fit best for someone who is a 2-6. For those of you ladies who have a larger bust line, I would go with the Large. The fabric for the costume didn't have the stretching like I had read. My husband went to Party City the night before halloween and bought me the exact same costume in a large. The fabric was stretchy unlike the one I had received. Just a note of caution for those who are wearing this, the model wearing the outfit seems to be wearing a tutu (or petticoat) underneath. I had wore black pajama shorts under it, otherwise it would creep up and show a lot more than I wanted.