The Simple Sock 4-ply is a hand-dyed 4-ply yarn, made from a blend of merino and nylon. The yarn is strong and durable, machine washable and ideal for knitting socks, garments and accessories. Due to its small size and price, this skein is very suitable for adding color accents to your projects. Although the yarn differs from the Basic Sock (different supplier), they can still be combined well.