NOS Vintage Green Graphic Print Swimsuit Algas Antorcha D 176 S 170 F 18 Small Childs Nice print with sea shells / sea creatures and vaguely Keith Haring-esque swimmers Frills at the sides 100% Polyester / Made in Spain I think this is a French child’s size 18 which roughly means age 18, I’ve put some some rough measurements below, see pictures for how I’m measuring, I would suggest comparing against a swimming costume that you know fits to confirmAs this is a larger size a small adult might get away with it