Maria Rosa 6-Pack Girls Cotton Spandex Bikini Color Trimmed with cute graphic print. 92% Cotton 8% Spandex Comes in a 6 pair pack with assorted colors. Machine wash in lingerie laundry bag, line dry. For better results, hand wash. General sizing guide corresponding to : Small (6), Medium (8), Large (10), X-Large (12). It is recommended to order one size up if you are in between sizes.