This simple cowl has a geometric lace pattern that is worked on every row. And dudes, picot edges.
The sample shown was knit using a handspun yarn. Malabrigo Merino Worsted would be a great substitute.
One-page pattern download includes charted lace instructions.
Work at a different gauge using the same instructions, just cast on a multiple of 8 sts that gives you a finished circumference of 20-22”.