Whether you run on a treadmill, on a sidewalk, on a track, or on a trail, your feet should stay as comfortable as possible. These low ankle socks – now updated with recycled content – are built to help with that. They offer a performance-oriented fit, breathability, and reduced slippage.Features:Made with ZQ-certified Merino wool for comfort and odour-resistance4 Degree™ Elite Fit System – For a dialed, performance-oriented fit with flex zone at ankle jointIndestructawool™ technology features a patent-pending construction method for exceptional durability and comfortMesh ventilation zones provide optimum moisture management and maximum breathabilityVirtually Seamless™ toe – Smoothed out toe seams for ultimate in-shoe fit and comfortAchilles tab prevents sock from slipping into footwearTargeted cushion – Cushioning on the ball and heel of the foot add just the right supportLow ankle heightMaterials:Medium Gray: 54% Merino Wool, 11% Nylon, 32% Recycled Nylon, 3% ElastaneSpecific percentage of Recycled Nylon will vary as Smartwool transition to 100% Recycled Nylon in future seasonsCare instructions:Machine wash warm, inside outDo not bleachTumble dry lowDo not ironDo not dry clean