My sister-in-law requested a hat because she is always cold, but as a stylist she can't afford to wear a warm hat that messes up her "do", especially at work. The hat is designed with extra ease and slouch, so as not to crush her perfectly coiffed curls, but the double-layer slip stitch pattern provides extra warmth.
Most any wool or wool-blend worsted weight yarn would work well in this hat pattern - don’t be afraid to combine two different yarns to get the color combination that makes you happy. An indie-dyed vibrant yarn would look great against a dark commercial yarn, or maybe two small skeins of hand-spun!
The hat is worked from the brim to the crown in the round using a ribbed brim and an all-over two-color slip stitch pattern. Crown decreases are worked withing the slip stitch pattern. The design is both written and charted. These instructions do not recommend a particular method for knitting in the round.