These long women's socks featuring an all-over lace/hole pattern with picot edging are knitted in Regia Tweed 4-Ply - a classic, non-felting sock yarn made up of a blend of 70% wool, 25% polyamide (nylon) and 5% viscose that offers long-lasting wear and great shape retention. For a tutorial on completing the 'boomerang' heel, click here. Shades selected below are an example.