Size S fits US(2-4) Size M fits US(6-12) Size L fits US(14-18) Please read the Size Chart carefully to choose the suitable size for you. Garment Care: Hand wash recommend/Gentle Wash Mode on the washing machine. Line dry/flat dry only. Wash Dark Color Separetely. We suggest to line dry after gentle wash(or hand wash) in cold water , then iron on reverse side in low temperature for better appearance and hand feel.