Outdoor Research Men's Sentinel Bucket 100% Supplex Nylon Imported Supplex nylon fabric; UPF 32 Insect Shield clothing repels mosquitoes, ticks, ants, flies, chiggers and no-see-ums, reducing the need for topical repellents Insect Shield is odorless and EPA-registered; effectiveness against insects is good for 70 washings SolarShield construction TransAction&trade; headband for comfort and moisture management