These are great - durable and comfy. I recommend ordering a size up from your pre-pregnancy size. My pre-pregnancy size is 52 110lbs and I ordered small, they are a little tight on my breasts (even with padding removed) and I ended up getting mastitis which can be caused by tight clothing. Overall they are supportive enough to wear without a bra while sleeping but I wouldnt spend a whole day without a bra with these.