Unique heavy worsted weight wool. Some dyed, some undyed. Majority of colors are 100yd 3oz 3 ply. The Unalaska wool he grows is probably the most sustainably sourced wool in the world. He gathers a small herd of sheep that roam naturally on the Aleutian island where he lives and sheers them. Blended with Merino wool and nylon by the mill. In the future we will try to get his pure Unalaska wool, but the mill blended this batch.