This is a size M Toko-chan Belt. There are no noticeable stains, so I think it can be used normally. It can be used for a long time, from pregnancy to postpartum. - Size: M - Design: Breathable hole design - Material: Stretchy fabric Thank you for viewing. From the official website: A pelvic belt that comfortably supports the loosened pelvis from pregnancy to postpartum. "Toco" in Toko-chan comes from "osan" (childbirth). It was also named with the wish "a belt that allows you to walk with toco toco (a light, steady walk)". More than 25 years since its birth, it is now loved by many people as a pelvic belt that supports the bodies of women of all generations.