Wacoal Maternity Belt for Pregnancy and Postpartum S Size, Black [Pregnancy & Postpartum Pelvic Belt [Functional Belt for Pregnancy and Postpartum]] This belt supports the three key points around the pelvis (sacroiliac joint - greater trochanter - pubic symphysis) in a circular manner, providing gentle support for the lower back and comfortable wear. - Y-shaped structure holds the hips and prevents slippage. - Breathable material is used for comfortable wear without stuffiness. - Stretch material at the upper back enhances the fit. - Non-slip tape on the inner side prevents slippage. - Easy to put on with a style that threads the belt, making it easy to wrap. - Sewing with minimal unevenness provides a gentle feel against the skin. - Both the boning and buckle are made of resin for a gentle fit. Only tried on. I purchased other items and did not use this, so I am selling it as it has been stored at home. Although it is unused, please purchase only if you understand that it is a used item.