From Pattern Description:

“This is a reversible cap that is nearly windproof. One side of the Cap is a solid color and the other side has a diamond pattern. … This pattern is for a snug fitting adult cap.” -Robert Carlson

This pattern calls for one skein of a worsted weight yarn for the main color, and a half skein of worsted weight yarn for the pattern color.

Additional materials needed: 1 cable needle or stitch holder