Sunlight and battery powered fan keeps you cool in solar and clouds. Cool hat for a hot day, exploring for native natural world, working within the backyard, looking at your favourite sport or every other outside job. Our weather-proof hat of pure linen straw makes use of constructed-in solar cell or 2 AA batteries to power a small fan that directs a continuing cooling breeze to your forehead. Offers you power in or out of the sun. Excellent for the sportsman who has to maintain his cool. One measurement suits all with adjustable alleviation liner. With three-approach sunlight/battery/off switch. Batteries no longer included.