Knotty Lines is the pattern for Week 12 of Delaware Head Huggers 12 Weeks of Christmas! A very simple cable stitch adds some interest to the pattern. The model has a contrasting brim, but you could easily knit this all in one color. You could also knit the textured part as a band in the center of the hat - just knit an inch or so of stockinette before and after the pattern rows. The model was knit using super bulky, 6-weight yarn, but the PDF has information for all yarn weights. Experiment and have fun with it! Coordinate colors or go monochrome - either will work well.