This dress is very beautiful, and the material feels lovely. However, the invisible zipper installed in it is extremely flimsy. I bought a size Small, and the dress is slightly loose-fitting on me. I zipped it up, moved my shoulders to put on the harness I was going to wear, and the entire invisible zipper split. It took a great deal of effort to move the zipper down enough for me to get the dress off. Even doing that, only half of the zipper would slide and still would not bring the teeth together. So after not even getting to wear the dress, I'll have to take it to a tailor and get the zipper replaced.