The yarn I used was Cascade Fixation, which is an elastic yarn. The colors are khaki, pink, yellow and olive. The pattern is all done in a woven stitch to mimic sort of a tweed. I did have to change color all the time, I believe every 2 rows for each of the colors. It was a slip stitch, so every other stitch was slipped behind the khaki color. It give it very much a tweed appearance. I started out cutting the yarn at a color change, but found it worked better to carry all the yarns, as the side are sewn, so any floaters are hidden.