Thank you for viewing. This is a Wacoal pelvic belt. The size is L. It's a belt to stabilize the pelvis for mothers before and after childbirth. I purchased this here and used it for only one month postpartum! There is some pilling (see image three), but it's still in good condition, so I think you can use it plenty! Wacoal products are well-made, so I recommend them for mothers before and after childbirth! Thank you for your consideration.