Aw, the luxury and feel of Alpaca is something to experience! These socks are Hand painted Alpaca blend socks. Made of top quality Alpaca/Merino wool yarns. No two pair are alike as the colors feed into my knitting machine differently each time and the yarn takes the dye differently also. The top 1" of the sock contains elastic so the sock will not slide or slip down your leg. Wearing these socks are a dream! They feel like butter! The fiber content of this yarn is 20% alpaca, 60% wool and 20% nylon.