'Ultra Adventure Hat' by Sun Day Afternoons. UPF 50+. Color: Blue Mountain with Crown Ventilation and Reflectors. 3 1/4' Reverse Clamshell Brim and 6' Neck Cape with Wicking Sweatband. Sunglass lock. Water and Stain Resistant. Size Medium adjustable. 'Bluesign' certified main body fabric (89% Nylon and 12% Polyester). Materials and workmanship guaranteed for life.