I purchased this about six months ago, but the size didn't fit, so it's unused and in good condition. I tried to adjust the elastic in the waist and slightly unraveled the inner thread, but I've sewn it back together properly, so there's no problem with use. Therefore, it's considered slightly defective. The size is L, but I think it's equivalent to a size M. I kept it stored away because I don't like a tight fit around the waist. Waist: 33cm (measured flat) Thank you.