This is formal evening dresses｣ｬis 20% Polyester and 80% cotton｣ｬhigh quality chiffon and sequins｣ｬbright crystal.You need to measure bust｣ｬwaist｣ｬhollow to floor｣ｬunit cm｣ｬXXS:80-83.60-62.147｣ｬXS:83-85.62-65.147｣ｬS:85-88.65-67.150｣ｬM:90-93.70-72.150｣ｬL:97-100.76-80.150｣ｬXL:104-109.84-88.150｣ｬXXL:110-116.91-95.150