The LTM5 AIRFLO® Tilley Hat is designed with a medium brim and ¾" polyester mesh in the crown for coolness and comfort during hot days and strenuous activities. Made with Tilley Nylamtium®, a strong water-and-mildew resistant form of lightweight nylon. This Hat in Olive is the Tilley Audubon Hat. Tilley LTM5 Sun Protection Hat Ships free in the USA. This Tilley Airflo Hat with a semi sloping front and back brim, and a rather high crown is a ventilated version of Tilley's popular T5. Tilley has incorporated an open weave mesh band into the crown to allow coolness and comfort during hot days or strenuous activities.
