100% Cotton Size: ajustable. Circumference: 21.7-23.6inches / 55-60cm.Brim: 2.76inches / 7cm. Crown: 3.54inches / 9cm. Great baseball caps for both Men and Topo-Chico-Mineral-Water-Women. Simple but elegant design makes ball cap great as a nice present for your family, friends and lovers. Great for any season, the ??one size fits most?? design promises a secure, tidy & comfortable fit every time. 100% Cotton Made,lightweight/durable/smooth,comfortable all-day wear.