This chunky cowl is worked in joined rounds, and is a very simple shell stitch. I used two skeins of Loops & Threads Charisma in Charcoal for the grey one, and one skein of Loops & Threads Zoomba for the purple one. I used an N hook for both.
To change the width, ch any multiple of 4. My grey cowl is 36”x15” and the purple one is 30”x8”.