Wool Crew Sock: No Fly Zone in Boulder Blue
No Fly Zone socks are manufactured using yarns treated with permethrin insect repellent. Odorless and durable, permethrin repels common biting insects like mosquitoes, flies, chiggers, midges, ticks, and ants. And best of all, it doesn’t alter the amazing qualities of our 100% US-made merino wool. Wearing the No Fly Zone Boulder lowers your chances of getting bothersome bites - or worse, insect-borne diseases - on your next day hike or backpacking trip.
A lightweight crew hiker with classic style and US-sourced merino wool, includes full-density cushioning in the bottom of the foot for extra comfort.
100% American Made
40% U.S. Merino Wool
40% U.S. Polyester
19% U.S. Nylon
1% U.S. Spandex
To ensure long-lasting comfort and fit, machine wash cold and lay socks flat to dry.
Guaranteed For Life
All returned socks are recycled.