Yarn > Mountain Meadow Wool > Knitty Gritty Sport It starts as a mountain of soft fine wool in natural colors, over a period of several months other fibers like Alpaca, Shetland, Bamboo, Silk, and sometimes Bison are added. 2-ply Sport appx 185yds/56g/2oz appx 70% Wool, 30% Exotic Made in Buffalo, Wyoming USA