Nua Worsted by Stolen Stitches ( Carol Feller), Worsted weight, 50 g - 109 yards, 60% Merino wool, 20% Yak, 20% Linen, Handwash Only, Gauge: 19.0 to 21.0 sts = 4 inches Needle size: US 6 - 7 or 4 - 4.5mm