The Tilley LTM5 Airflo provides sun protection in a lighter-weight construction. Tilley Airflo designs incorporate mesh into the crown allowing coolness and comfort during hot days or strenuous activities. Features a closed cell foam in the crown allowing it to float in water. Secret pocket in the crown will hold carry ID, cash or credit card. Hat will repel rain and is mildew resistant. For the proper fit, you should be able to easily insert two fingers, flat, between the middle of your forehead and the front of the hat. Washing Instructions: Machine wash in warm or cool water. Do not use bleach. Smooth and reshape the Hat by hand and set it out to air dry. This special order hat can takes up to 5-7 days to ship.