Order a size up for postpartum and/or large bust. This is a fantastic nursing top, comfortable, soft, good color, easy access. I bought a large pre-baby and an XL after, the xl fit much more comfortably. The light colors are see through in the back where its a single layer, but the darker colors are opaque all the way around (even when worn snug, as the large in my case). I like to wear a scarf while nursing in it as the wrap access requires the entire breast out while nursing. Highly recommend.