The material of this bra is very soft and band is wide without being thick. I purchased a medium and my bra size is 34DDD (F/G). I'm still pregnant so have not used it for nursing yet. My only complaint/discomfort is how high the bra comes up in the back. It's like a very high sports bra that touches the base of my neck and is really awkward and uncomfortable. For previous pregnancies I have used a different brand for sleep bras with a different style.