Your eyes should be focused on the trail ahead of you. Not the sun in the sky, not the sweat falling down your face, not the trail behind you. Mesh vents allow this hat to keep you cool in varying conditions, and a DWR finish will repel water while staying completely breathable. A special stretch fit will make this hat seem like it was custom built for your noggin, and the terry cloth finish will absorb sweat before it runs into your eyes, as well as prevent chafing.