The Falke Lady Silver Cushion Runner Socks in Black Mid Grey are designed for superior comfort and performance! These eco-friendly socks are made from 86% BCool recycled polyester, 8% polyamide, 4% elastane, and 2% silver fibre. They feature half cushioning for extra comfort, silver fibre to keep feet fresh and odour-free, mesh panels for ventilation, a heel tab to prevent slipping, arch support, and a seamless toe to prevent blisters.