Bought this to wear immediately postpartum to wear around the house (with nothing underneath) to facilitate skin-to-skin time and breastfeeding. The small runs a wee-bit small but I knew that because I purchased the long sleeved version in a small. I wanted it to be a weensy bit small because it still allows for modesty (my chest is completely covered and would be fine to wear without anything under it) but still opens easily for the aforementioned reasons. The material is SUPER SOFT and stretchy and it's VERY comfortable. I just hope it doesn't shrink at all when it's washed or it will definitely be too small.