In the quest for a pompom hat that you can wear slightly slouchy or snug with a fold of the brim, I choose my favorite worsted weight yarn to create this pattern. Our yarn, Octave, is not longer stocked, so choose Vortex Yarns Spiral Jetty, (60% Merino/ 40% Silk, 550 yds/250 gr, worsted weight) or worsted from your own stash.