Repels mosquitoes, ticks, ants, flies, chiggers and midges with EPA-registered permethrin repellent built into the fabric. 100% polyester micro mesh, 2oz. Breathable lightweight layer for added protection. Spandex binding around hood, bottom hem and sleeve opening. Thumb catch at sleeve opening. Normal home laundering is recommended. Do not dry clean. Repellency lasts 25 washes.