NWT Smartwool Ski Full Cushion Pattern Over The Calf Socks in Black. Size medium. Full Cushion Indestructawool™ technology for enhanced durability 4 Degree™ elite fit system for a dialed-in, performance-oriented fit Body-mapped mesh zones for added breathability Wider welt for secure fit and comfort Virtually Seamless™ toe for enhanced comfort Women's specific fit: narrower heel and slimmer fit 55% Merino Wool 9% Nylon 34% Recycled Nylon 2% Elastane