Model is wearing size M Size S fits girls 1-4 years old, size M fits girls 5-7 years old, size L fits girls size 8-12 years old Elastic waistband made to grow with your child Premium fabric made with the finest yarns for a soft, sophisticated feel Swim fabric, fast dry and water repellent Material composition is 82% Polyester, 18% Spandex SALE ITEMS ARE FINAL SALE AND CANNOT BE RETURNED