I used DK weight wool/nylon blend yarn for both cowls.
Each one took about 220-245 yds / 201-224 m of yarn.
I used a crochet hook size "H" / 5mm
The finished size 8" / 20cm tall and 26" / 65cm around. The pattern comes with directions for making it larger in both directions. Note that this will take more yarn.
This cowl is crocheted flat in rows. It is a one row repeat and has a ton of texture!