Top off your Summerweight Uniform and stay cool in the sun with the lightweight, vented protection of the Propper Summerweight Wide Brim Boonie, featuring fold up sides for hot weather duty. This boonie hat sets a new standard in warm-weather head protection. With an ultra-light ripstop fabric rated to UPF 50 and 360° mesh sides, the Propper Summerweight Wide Brim Boonie provides all-day sun protection while remaining comfortable and breathable. Ultra-lightweight fabric wicks moisture away from the body, and mesh panels at the top of the hat allow your head to breathe. An adjustable chin strap ensures a secure fit. When the weather warms up, look for the Propper Summerweight Wide Brim Boonie.