Thank you for viewing. This is a pelvic belt that can be used before and after childbirth. I purchased it a few years ago and used it for about two months, and have been storing it at home. As I was at risk of premature labor, I felt supported and reassured when wearing it during standing work. It's more comfortable to loosen it when sitting. After giving birth, I was mostly sitting or lying down, so I didn't have many opportunities to use it. It has been used a bit, but I think it can still be used, so I am selling it. Size: M