Regia Sock Yarn Classic 4-ply Colour is a tried and true tradition. There are four separate plies twisted together creating perfect hand knit socks. One 100 g ball is enough to make one pair of adult size socks. This 4-ply is available in a wide range of solid, self-patterning and heathery colours and shades. Regia sock yarn is machine washable up to 40° C (100° F) and can be machine dried. Comes with the 10 year Regia guarantee.