Love this dress (and checking out my separate listing for little girls size 2/3Y for a matching Mommy and Me look!). Perfect for vacation - flowy and it has pockets! This dress runs big - I am usually a small in dresses and had to size down to the XS (and it was still loose). Would be EUC if not for the fabric fade that happens with this material, so saying GUC to be safe. 100% cotton.