Occasionally you’ll come across a skein of yarn labeled 100 percent Pure Virgin Wool. No, this is not referring to the sheep’s modesty. It’s a reference to the days when people would sell their old knits and woven goods to shoddy mills, where they would be unraveled or shredded and re-manufactured into blankets or yarn. By putting Virgin Wool on a garment or yarn label, the manufacturer is indicating that this is the fiber’s first foray into the world of textiles. If you were to knit a wool garment, unravel the yarn, and re-knit it into something else, technically it would no longer be virgin wool.