FEATURES UPF 50+ fabric protects you from intense sun; Foam stiffened brim floats Strategically placed vents and wicking properties to keep you dry Wicking TransAction headband is comfortable next to skin External drawcord adjustment lets you fine-tune the fit; Removable chin cord Imported SPECS Best Use:   Multisport Material:   86% Nylon / 14% Polyester UPF Rating:   50+ Head Circumference:   18.1-18.9 inches Width of Brim:   3-3.75 inches Learn more about Sun Protective Clothing and UPF Ratings on the MHO Blog.