4F FNK F239 Women's Ski Socks, Deep Black 4FWMM00UFSOF239 20S 4F women's ski socks are designed to protect your feet during winter fun on the slopes. Made of elastic yarn. Reinforced heel and toe areas. Elastic upper cuff. Elastic cuff around the arch and ankle. Ventilation panels. Material: 55% acrylic, 30% cotton, 12% polyamide, 3% elastane