The Falke Lady Hidden Cool Socks in Black are designed for superior comfort and performance! These eco-friendly socks are made from 42% BCool recycled yarn, 42% cotton, 11% polyamide, and 5% elastane. They feature underarch grip technology for added comfort and support, mesh panels for breathability, fully cushioned for superior comfort, a fine toe seam to prevent blisters, and a heel tab for added comfort and support.