Ecological Wool is 100% Natural Peruvian Wool. This is an incredible natural wool, undyed! The colors are just as they come from the sheep. Soft and wearable, this wool lends itself to either garments or felting, in solids or marled colors. 3.5 - 4 stitches to the inch. An amazing yarn in big, generous skeins of 478 yards at an unbelievably low price. What a value!