Half-Ribby Cap by Theresa Vinson Stenersen

Half-Ribby Cap

Knitting
Aran / Worsted ?
8 stitches = 2 inches
in Stockinette stitch
US 6 - 4.0 mm
This pattern is available for free.

The ribbing makes this cap stretchy, so I imagine this would fit a variety of adult heads. I made it to fit my own huge 24"-er and come down to cover my ears.