2 brim options: double thick knit brim or 2x2 rib brim.
Beanie style omit the extra rows between color work and decrease and omit the just knit rows during the decreasing.

Use Contrasting Color to cast on to make it easier to see the purl bumps on the back when you fold and knit the cast on edge to make it double think.

This pattern uses 1 full skein of main color and 1 mini skein of the contrasting color.