Engineered with built-in arch support, ExOfficio Women's BugsAway Solstice Canyon Crew Socks provide dependable comfort on the trail, during travel, or as you're trekking through a dense forest. Knit from a breathable wool/nylon blend with spandex throughout for extra retention, they wick moisture away from your skin and keep your feet dry. The turn-welt top keeps these socks for women in place as you're hiking, running, and jumping over trail debris, while a seamless toe closure reduces irritation during long days of wear. Whether in the backwoods or the backyard, Insect Shield technology helps keep you protected with built-in invisible, odorless insect protection that repels mosquitoes, ticks, ants, flies, chiggers and midges (no-see-ums). The active ingredient in Insect Shield products is so tightly bonded to the fabric fibers that it retains effective repellency through 70 washes.