100% washed cotton chino twill. Unstructured, 6-panel, low-profile. 6 embroidered eyelets. Adjustable strap with hide-away buckle. Head circumference: 19 ¼” - 23 ⅝”. Made in the USA. If you're looking for a made in America hat, the Caddie Fit™ is it! It's unstructured with a curved visor and adjustable strap.