Exofficio Men's Bugs Away Purdom Hiker Socks
The BugsAway Purdom Hiker sock is made from a recycled polyester and wool blend, and provides long-lasting, effective and convenient insect protection. 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).Insect Shield repellent lasts 70 washings.