Long runs and rides through brushy country take a toll on the ankle and lower leg. These thin lightweight socks add a layer of vital skin protection without overheating your feet. They're tweaked this year with new felting zones for improved breathability and moisture transfer. The Capilene® performance polyester fabric wicks moisture and dries fast; soft itch-free merino wool adds cushion and all-day comfort. Coolmax® and nylon add durability and wickability. With polyester and spandex for stretch. The felted footbed maintains cushioning for the lifetime of the sock.