100% Cotton Snap closure Machine wash delicate or hand wash cold. Use mild detergent. Do not use softeners or bleach. Remove windcord and foam from crown pocket before washing. Reshape and air dry. Do not iron. Do not dry clean. The original Tilley hat with 40 years of history. The T3 is an outdoor favourite. Designed with a flat brim, circular crown, snap-up sides and finished with our iconic grommets for easy ventilation.