This product couldn't have come out at a better time, I needed a fleece bathrobe. I'm normally a size Medium in most things, but I was nervous the M / L would be too big, so I ordered an XS / S. This fit perfectly! I think there's a bit of an oversized fit, so sizing down was the right move for me. I love relaxing in the morning, wearing the robe, and drinking a cup of coffee.