It helpes to stabilize pelvis with the lining which supports pelvis area like one ring not to push growing belly. The waist position is designed lower so the waist line doesn't meet shorts waist line then the silhouette is clear looking. *Caution about wearing : If you feel uncomfortable feeling of tightness on your belly or you don't feel good when you wear please stop wearing immediately. And it is recommended to consult with your doctor about wearing this product.