Fat rib beanie is worked bottom up in 5x5 ribbing with worsted weight yarn. Body of the beanie is worked on 4.0 mm US 6 needles.

Fat rib hat is worked bottom up in 5x5 ribbing with worsted weight yarn / dk weight + lace weight yarn / sport weight yarn held double.

The Flap hat is worked bottom up in stockinette stitch with one strand of worsted weight yarn or two strands of dk/sport + lace yarn held together.