Super-comfortable, certified UPF 50+. The LTM6 Airflo Broad Brim hat is made in 100% Recycled Nylon with a durable UPF 50+ finish. It combines our unique Airflo technology with a PFC Free durable water repellent finish, offering protection come rain or shine. Size XS is equal to size 6 7/8 Size S is equal to size 7 Size S/M is equal to size 7 1/8 Size M is equal to size 7 1/4 Size M/L is equal to size 7 3/8 Size L is equal to size 7 1/2 Size L/XL is equal to size 7 5/8 Size XL is equal to size 7 3/4 Size XL/XXL is equal to size 7 7/8 Size XXL is equal to size 8