They recommended to choose the size above so I chose S but I think XS would have been the better choice! It is a liiitle too roomy in the arms + shoulders​,​ but it works! It is a very comfortable and beautiful shirt. It is 100% cotton but gives off a bit of a stretchy feel because of the way it’s woven I think. Today I styled it with a satin skirt and clogs for church＜abbr＞Sezane​,​S​,​$75​,​5'7-5'8 5'7-5'8​,​French Brands​,​Size S​,​T-shirt​,​Tops All Reviews​,​Sezane​,​Top＜​/​abbr＞