The Outdoor Research Halcyon Sombrero provides ultimate shade from the sun and protection in case of an unexpected squall. Made of Schoeller® 3XDRY® fabric, the Halcyon Sombrero is water resistant and breathable to keep you comfortably dry in the humidity. Keeping the top of your head dry is a TransAction headband that provides excellent moisture management. When the sun ducks behind the clouds, snaps allow the brim to be attached to the dome. The Outdoor Research Halcyon Sombrero provides coverage from the sun, but should a light rain roll in, you're covered too.