The Airflo Lightweight Broad Brim Outback by Tilley is a lightweight Supplex nylon hat with a broader down-sloping brim for protection from the sun and rain. The Airflow design allows extra circulation in the crown and looks great too! Tilley hats are all guaranteed for life, durable so they will not to wear out. They feature foam in the crown and brim, so they will float and not get lost in the water. They also have a tie cord, so they won't fly away in the wind. Water repellent and UPF50+ rated for ultimate protection against the elements. Crushable, durable, and packable - the ultimate wanderlust must have hat. The secret pocket in the crown will allow you to store your valuables while on your adventure. Tilley hats are machine washable and will not shrink. They also come with a very cool 4-page owners manual. Best of all, they are all certified as an excellent form of UV protection, with the highest possible rating of UPF 50+. It's easy to understand that a Tilley is not just a hat, it's an investment in good health, good fun, and good value!