Love these shirts! They are super soft and comfortable, plus the girl cut is great. Longer length, slimmer cut! They do run a tad on the small side. My daughter wears a 5T, but she is tall and skinny, I order them in an XS and it is fitted on her, but we need it for the extra length. If she was not as skinny as she is, I would need it in a size Small. Another thing, when you order XS in this brand sometimes the tag reads (XS-3/4) & other times (XS-4/5), but they are the same sized shirt. They fit more like a 4T.