Cotton,Leather Made in USA Filson? keeps you covered with the timelessly stylish Tin Packet Hat. Tin cloth is abrasion and weather resistant. Integrated grommets for added breathability. Lined with a cotton sweatband. Leather hatband. Fabric ages and softens with time. 100% cotton. Spot clean. Made in the U.S.A. Measurements: Circumference: 24 in Brim: 2 in Product measurements were taken using size 2XL. Please note that measurements may vary by size.