The Tilley LTM6 Airflo(R) is a broad brimmed, down-sloping hat. The brim width is 3 1/4" in the front and back, and 2 1/2" on the sides. The weight is 4 oz - it is designed to be very light. This is an Airflo hat with mesh incorporated into the crown. Airflo hats are made from Tilley Nylamtium(R) fabric and provide cool sun protection in a lightweight construction. In spite of the breathable mesh atop the hat, it is certified with a Ultraviolet Protection Factor (UPF) of 50+, the highest rating available. Blocks 98% of UV rays. Color Khaki has an Olive underbrim. Best for General Outdoor Use: Gardening, Beach/Resort, Hiking, Backpacking, and Paddle-Sports.