The BugsAway® Chios is the all-around favorite for bug and sun protection, with clean lines and subtle details perfect for travel spanning from urban to buggy environments. Lightweight, easy-care nylon dries fast and blocks up to 97.4% of UV radiation. A mesh-lined back yoke for ventilation catches the breeze, and roll-up sleeve tabs provide versatility. A hidden security zip pocket on the right fits a passport or other valuables for peace of mind on the road. BugsAway® apparel is treated with Insect Shield®, giving you invisible, odorless protection just by putting on your clothes. The treatment binds permethrin to fabric fibers for the life of the garment, so it stays in your clothes—not on your skin—and lasts through 70 washes. It's effective against ants, flies, chiggers, midges, and ticks, as well as mosquitoes, which can transmit insect-borne diseases such as Zika, Chikungunya, Dengue, and West Nile viruses.