The Closed Circuit Socks pattern is a charted slip-stitch mosaic pattern consisting of an 8-stitch repeat. The sock pattern is written for toe-up socks using the magic loop technique with an afterthought heel; however, the pattern can be converted into a cuff-down pattern knit on magic loop. The pattern is written for the sock knitter who has familiarity with the construction of a sock but has not attempted to introduce colorwork to a sock pattern.