SO... everyone advised going up a size? Not if you're petite and size 6. Im 52, size 6. I ordered a medium and wish I had gotten a small. It fits nice and lose. I like a bit more of a snug fit... also the fabric is very soft- but SUPER cheap. Im afraid after one wash and dry- it may not hold up. Its thin and very stretchy in the arm holes and feet holes. Not sure if Im keeping it.