This is a set of four pajama bottoms from Bebe. They are all made of 100% cotton gauze material. The sizes are 70-80 and FREE. They fit a bit small around the waist, so I wore them when my child was size 70. I think they can still be used as loungewear or pajamas with a romper. There is some pilling and wear, but no noticeable scratches or stains.