– lightweight, cooling and odour control finish, performance-ready recycled COOLmatic|PLUS fabric. – UPF +40 protection on the brim, front panel and back panel. – machine washable. – pliable SOFTcurve pre curved brim for easy packability. – reflective detailing for night run visibility. – ciele athletics™ million miles guarantee. – 5 panel fit. 58 cm. adjustable. one size fits most. – weight 50 grams. – designed for people who run.