Tech-Wool Wide BrimWind proof, water repellent and UV blocking wool construction with a wide brim to block the sun. Includes hydrofil sweatband that wicks sweat so you stay dry, hidden pocket to store essentials and tuckaway ear warmers for especially frigid weather. Ventilating grommets circulate air to maintain a comfortable temperature while buoyant crown keeps this hat afloat if it falls in the water.