100% Natural Peruvian Wool. Eco+ (pronounced eco plus) is in the same family as the Eco Wool yarn, only Eco + comes in a fabulous range of colors. Soft and wearable, this wool lends itself to either garments or felting, in solid 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!