Everly Grey Women's Dawn 4 Piece Maternity and Nursing PJ Chemise Set with Robe and Sleep Bra 95% rayon, 5% spandex Perfect Gift for Moms & New Moms: 4-piece set includes chemise, robe, sleep bra and gift bag Nursing chemise features easy lift open breastfeeding access US Sizing: (S): 2-4, (M): 6-8, (L): 10-12, (XL): 14