This is part of a lucky bag I bought a few years ago. I'd like to sell the bellyband pants and socks, as I didn't use them very often. I cut off the washing tag on the pants because it felt uncomfortable against my skin. Therefore, I can't be sure if the size was free size or not, I'm sorry. The socks also show some signs of wear, so I hope to sell them to someone who understands this. Thank you for your consideration.