Outdoor Research Sentinel Hat 100% Nylon Imported . Insect Shield&reg; repels mosquitoes, ticks, ants, flies, chiggers and no-see-ums for ultimate insect protection . Odorless, safe, EPA-registered Insect Shield&reg; lasts the lifetime of the product (over 70 washes) . SolarShield&trade; construction . Supplex&reg; nylon fabric; UPF 30. . TransAction&trade; headband for comfort and moisture management . Break-away chin cord China