'Sun Tripper' Cap by Sun Day Afternoons. UPF 50+. Size Large. Color-Mineral/Gray. Folding clamshell brim hidden crown ventilation sunglass lock and adjustable sizing. Water and stain resistant. 'Bluesign' certified main body fabric. Shell is made of 100% Nylon and lining is made of 100% Polyester. Materials and workmanship guaranteed for life.