The Chill-Its 8935MF Hi-Vis Sun Hat is a lightweight and breathable sun protection hat with advanced microfiber cooling technology lining the rim for relief in extreme heat. This 150D polyester sun hat is rated to UPF 50+ and features a wide brim for complete face and head coverage, while 360-degree mesh venting maximizes airflow for breathable comfort. The hi-vis colors (lime or orange) and 1in // 2.5cm reflective tape are ANSI 107-approved to keep workers safe and seen.