This corner to corner pattern is worked in half double crochets, which allows for less space between each square which makes for a sturdier, more functional washcloth, but you still get the great texture of the corner to corner stitch pattern, and ease in creating the graphic. I used Lily Sugar n Cream and Crafters Secret Cotton for my samples, but Bernat Handicrafter and Paintbox Yarns Aran Cotton are good alternatives. I worked the small one up in just under 1.5 hours, and the large up in 1.75 hours.