SPANX Pants and Leggings Size Chart SPANX Shapewear Size Chart SPANX Bra Size Chart SPANX® Mama Shorts deliver a cradle of comfort to expecting moms! They support the bump and smooth the thighs to ensure you look (and feel!) great all nine months. Select your pre-pregnancy size: non-compression belly band grows with you. Zones provide lower back support. Control that's comfortable and flattering. Cotton gusset makes panties optional & eliminates VPL (Visible Panty Lines). Style #163. 85% nylon, 15% Lycra® spandex;Gusset: 66% cotton, 34% spandex. Hand wash warm and line dry. Imported. If you're not fully satisfied with your purchase, you are welcome to return any unworn and unwashed items with tags intact and original packaging included.