Increase performance and comfort for your feet with the Smartwool Hike Ultra Light Crew Socks. These lightweight socks are perfect whether you are scaling mountains or sitting in an office working away. The Merino Wool blend (74% Merino, 24% Nylon, 1% Polyester and 1% Elastane) fabric features mesh ventilation zones for superior breathability and moisture transport. The high percentage of Merino Wool makes these socks quick-drying and naturally antimicrobial for a fresher and better smelling day. WOW technology reinforces high-impact zones such as the heel or ball of the foot with extra wool, reducing fatigue and abuse and providing extra comfort for your feet. The elasticized arch brace ensures a snug fit, while the flat knit toe seam ensures that your days having to deal with uncomfortable toe seams are over forever.