This is the prettiest fabric on this dress! It is a gauzy thin probably cotton (is it dead stick fabric so no exact fiber content on tag). It has a lining as well. It is truly beaut if I’m big it is too big for me. I purchased pre-loved and did not realize it was a small not an xs. There is a slight deodorant discoloration in the inside but it barely shows on the outside. I didn’t even notice it until I was photographing it here. Excellent condition and a hard to find fabric.