I liked the first one so much I made another one! In chunky this time. I did a three stitch icord at the beginning of each knit row by slipping the first three stitches of the row, which has made a nice edge. The other edge I just knitted as normal, so it was easy to sew up.

This is an incredibly easy pattern to adapt to different weights of yarn - just cast on enough stitches to give you 22” or so in width, then knit till it measures 50” or so.