Thank you for viewing! This is a Toray nylon 100% Japanese undergarment (waist-high tights). It's labeled as a size L, but it seems like it would also fit a size M. I think it's more of an L leaning towards M. It's old, so the elastic in the waist is completely deteriorated. There's an opening for replacement, so the elastic needs to be replaced. I will send you unopened ones, but they are all likely in the same condition. There is yellowing overall, especially around the elastic area. I'm selling them at a low price, so thank you for your understanding. This is a set of 3.