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-GUARANTEED FOR LIFE -INSURED AGAINST LOSS -EXCELLENT SUN PROTECTION -REPELS RAIN -TIES ON IN THE WIND -MACHINE WASHABLE (WON`T SHRINK) And it weighs only about 4 ounces! Let the Airflo®! The Tilley Airflo® provides sun protection in a lighterweight construction. Tilley Airflo® designs incorporate mesh into the crown allowing coolness and comfort during hot days or strenuous activities. Engineered from Tilley Nylamtium®, a strong water-and-mildew resistant form of nylon. The LTM6 is the Airflo® version of our LT6 Hat, and has a broader brim and a taller crown than all the other Tilleys. Brim Measurements: Front and Back: 3 1/4″ Sides: 2 1/2″