Sweet Mommy Maternity and Nursing Ponte Flared Dress Fabric information: Rayon 63%, Nylon 33%, Polyurethane 4%. Very Stretchy. Affordable Maternity and Nursing Flared Skirt Stretchy Dress. US Sizes ratio S 0-2, M 2-4, L 4-6, LL(XL) 6-8. FITS TO BUST: SIZE M: 34-38INC/ 86-96CM. SIZE L: 41-43.5INC/ 104-110CM. Plenty of belly room, nursing access, round neck, long sleeves, pastel color pallet.