Description Some of our best fitting, most advanced run socks yet—we've packed years of testing, prototypes, and running smarts into these ZQ-Certified Merino wool socks. Featuring Targeted cushioning in the ball and heel of the foot to help maximize comfort with minimal in-shoe volume, body-mapped mesh ventilation zones, and a Virtually Seamless™ toe, this running socks is ready to keep up with you. Benefits Targeted Cushion Cushioning in specific places depending on activity. Typically on the ball of the foot and the heel. 4 Degree™ Elite Fit System For a dialed, performance-oriented fit with flex zone at ankle joint Indestructawool™ Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort Made In The USA Virtually Seamless™ Toe Smoothed out toe seams for ultimate in-shoe fit and comfort Women's Specific Fit Women's specific fit; narrower heel and slimmer fit Features Sock Height: Low Ankle Virtually Seamless™ toe for enhanced comfort Achilles tab designed to prevent sock from slipping down into footwear 1.5" overall height Made in USA of Imported Yarn: 56% Merino Wool, 41% Nylon, 3% Elastane Style: SW0SW210 Care Machine Wash Warm, Inside Out Do Not Bleach Tumble Dry Low Do Not Iron Do Not Dry Clean