This cowl pattern for adults is available in different widths in UK and US terms on my blog. It is made with Drops Andes yarn, but can of course be made with other yarns with a similar yardage. The measurements are given in the blog post.

The pattern is a mixture of granny stitch and V stitch and can of course be adapted to other yarns and uses.

There are other cowl patterns and more on my blog for free: