Trellis is an easy twisted-stitch narrow-fitting neck warmer with a lacy border and a rolled edge. It is knit in one piece from the bottom up. A matching set of wristwarmers can be made if you are frugal with the yarn! Try knitting with a slightly smaller needle to stretch the yardage.
You'll need 100g of DK yarn - minimum of 210m for cowl plus wristwarmers.
You can knit the cowl in worsted as well, but it will be larger and you may not be able to get the wristlets from only 100g of yarn.
One size: gauge is not critical.