I am normally a size 10 and I ordered this dress in moss in a medium.  It could not fit more perfectly.  The material is very light weight and somewhat see-through, but there is a short lining under the skirt that goes mid-way down the thigh.  The full dress comes just below my knees.  The shape is wonderful and very flattering.  I plan on getting this dress in a few other colors.  For the price you can't beat it.