I normally wear a size small (5'8 & 115lbs) however I have a long torso so I went ahead and ordered the medium thinking it may be a little big. Nope. It's actually very snug on me and it doesn't cover my rear end whatsoever. I'll be wearing it with shorts now b/c of the non-coverage of my backside, and I will probably remove the elastic in the leg openings as well. Aside from that, the material is great and seems like it will last a while and the color is very vibrant and relatively true to the photos (I got the yellow.) I would definitely recommend going up a size (or two!) if you are going to order this leo.
I am very happy with my purchase. I had been looking for a dance wear site to purchase piece's I could use for my cosplay costumes. I found a few but many were over priced and had bad reviews. I took a chance with DDS and I am happily surprised. The leotard is perfect, it is true to size (which I was really worried about), reasonably priced, and comfortable. I will definitely be buying here again.