Birth isn't the only miracle going on around here! Mama SPANX Footless Pantyhose deliver a cradle of comfort for expectant moms. Enjoy great SPANX features like a non-binding waistband, a soft, adjustable legband and added under belly support.Fabric Content: 85% Nylon, 15% Lycra Size Chart: Determine the proper size selection on chart shown on left side, based on Pre-pregnancy weight! If you wear size A pre-Pregnant, then choose x-smallIf you wear size B pre-Pregnant, than choose SmallIf you wear size C pre-Pregnant, than choose MediumIf you wear size D pre-Pregnant, than choose Large