These are Ganryu's classic sarouel pants. They have side adjusters that can be used to tighten the waist. There is also a drawcord on the inside of the waist to tighten it. The size is M. There are some pills near the back pockets. I think they can be removed with a pilling remover. If you have any questions, please ask in the comments section. Thank you very much. m(_ _)m