The Sinsolo Bucket Hat helps you stay cool and covered when there's no shade in sight - and the built-in chin strap keeps it from flying away in the wind. The lightweight, stretchy fabric also has a durable water repellent finish, providing some shelter from unexpected showers, too. Fit & Design: Full brim Lightweight Circuit(TM) stretch polyester material is light, comfortable, and breathable Arc'teryx word logo Technology: Water repellent Additional Details: PFAS-free Contains materials that meet the bluesign(R) criteria, PFAS (Per- and polyfluoroalkyl substances) compliant Do not dry clean Do not bleach Do not iron Do not tumble dry Do not wash Surface clean only