Men's NFZ Boulder Sock Color:Brown HR CALORIES Yes

HR CALORIES Yes

Targeted Cushion Strategically placed cushioning for comfort without the bulk

help reduce fatigue and improve the efficiency of your stride

zip and mesh pockets keep interior contents organized in every way possible

Men's NFZ Boulder Sock Color:Brown HR CALORIES YesAll 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 doesnt 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