Falke - No. 4 Pure Silk Knee High Socks. Color Blue (Cobalt 6712). Low Stock. On sale for $20.00. MSRP $85.00.. 2 left in stockBrand NameFalkeProduct NameNo. 4 Pure Silk Knee High SocksColorBlue (Cobalt 6712)Price$20.00MSRP: $85.00Rating