97% polyester, 3% spandex Low-profile 2 (5 cm) crown Matching undervisor Hook & loop closure with square ring Head circumference: 2223 (56 cm59 cm)This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!Size GuideABCOne size (inches)22-23 2 2 ABCOne size (cm)55.9-59.45.57