The BugsAway Halo is perfect for buggy, hot weather. It is crafted from sun protective lightweight nylon and features a Vertebrae Ventilation System and mesh-lined shoulders. The Halo also features two front pockets and a hidden button-down collar and roll-up sleeve tabs. Permethrin, the active ingredient in Insect Shield®, is invisible, odorless, and tightly bonded to the fabric fibers, and lasts the expected lifetime of the garment (70 washes). It repels mosquitoes (including those carrying West Nile virus and malaria), ticks, ants, flies, chiggers and midges (no-see-ums). The Halo provides sun protection with a UPF 30+ rating and dries quickly. Finally, an insect repellent shirt that stops the bugs and starts the adventure. Insect Shield® repellent lasts 70 washings.