Girls White Off-Shoulders Ruffle Top Lace & Ribbon Mexico Folklorico Fiesta Dance By Border Merchant Approximate Measurements: XS: armpit to armpit flat side to side 16", Length: 21". S: armpit to armpit flat side to side 17", Length: 21" M: armpit to armpit flat side to side 19", Length: 22". L: armpit to armpit flat side to side 20", Length: 22". XL: armpit to armpit flat side to side 21", Length: 23" By Border Merchant