GREAT QUALITY: This durable, 100% polyester hat provides comfort for all day wear, the breathable mesh backing helps to keep you cool and it will last you years. GREAT FIT: Recommended for children 2-10 years of age. 4-inch brim, embroidered eyelets and a pre-curved visor. Circumference is approximately 20.5 inches, with an adjustable closure allows it to fit anywhere 18-22 inches. Brim length measures 2.5 inches.