This pattern contains directions both Worsted and Fingering yarn.

1 skein of gnarledpaw Prime Sock (fingering weight - roughly 125-200 yds depending on height desired) will make a cowl measuring approx. 19” around

and

1 skein worsted weight (roughly 125-200 yds depending on height 
desired) will make a cowl measuring approx. 23” around

The length can be varied by adding (or subtracting) sections of stockinette and yarn-over lace.