Here is a cape to knit in garter stitch with Lang Yarns Yara knitting yarn (41% cotton, 33% mohair, 14% merino wool, 11% nylon, 1% spandex).
Quantities to knit are:
Lang Yarns Yara 0015
Knitting needles 4.5 mm (US 6 / UK 7) not included with the yarns. The knitting yarn kit includes a copy of the pattern.