The Cartesian Cowl is a relaxing knit that displays how simple multicolor helix knitting is and accompanies the Learn Something New: Helix Knitting article, along with the Cartesian Hat pattern. The cowl is knit lengthwise in a tube, using the helix knitting method of creating jogless joins for the five colors that are used in the cowl. Four shades of blue are worked in stockinette while a pop of bold orange is purled to add a bit of texture and interest to the knitting process.