The hat in the photos was knit using Yarn Bee Warm & Cozy in color Oat. One skein is more than enough for a single hat.

This pattern is available in sizes Small and Medium/Large, with the larger size fitting most adult heads. That being said, this pattern can easily be sized up or down even further by adding / reducing stitches in increments of 10.

Can be knit flat or in-the-round.