NYFASHION101 Women's Kentucky Derby Organaza Sinamay Dress Hat w/ Ruffle Bow One size fits most for this lightweight, two-toned, elegant organza hat. Ruffle bow is featured on this hat. Measurements - Brim: 5.25", Height: 8" Material: 100% Polyester. Adjustable drawstring within the hat to secure a tight fit from any breezy day. Great for Sunday brunches, picnics, or the seat at the Kentucky Derby! Stylish, attention-grabbing organza hat for the special occasion.