It could just be best way to protect your head, aside from a helmet. Made from our remarkably durable Fast-Tac® polyester ripstop fabric, the 5.11 Foldable Uniform Hi-Vis Hat carries an ANSI chromaticity rating for high-visibility safety. It also includes a 50-plus ultraviolet protection factor against the harmful rays of the sun on those long day shifts. The no-buckram Uniform Hat easily folds (even the brim is foldable) to stow just about anywhere, and the adjustable back fits most. Stay safe. Stay ready.