Tilley Endurables LTM6 Airflo Nylamtium Hat - Khaki/Olive The LTM6 AIRFLO Tilley Hat is designed with a wide brim and 3/4" polyester mesh built into the crown. This lightweight Hat offers superb ventilation and is made from Tilley Nylamtium, a strong water-and-mildew resistant form of nylon. Product Features: 100% supplex nylon Tilley Nylamtium. Mesh made from 100% polyester. Excellent sun protection, rated UPF 50+ Repels rain, floats Ties on in the wind Machine washable, won't shrink Secret pocket Broad brim with ¾" ventilation mesh Brim size: Front: 3 1/2" Back: 3 1/2" Sides: 2 1/2" Weighs 4 ounces Color: Khaki With Olive Underbrim