About Solmate Socks:
All of our products are knit from pre-consumer, recycled cotton yarn. We collect remnants from t-shirt factories that would normally go into a landfill, grind them down and re-spin them into our own yarns. These recycled yarns are certified by the Global Recycling Standard and Oeko-Tex. In addition to decreasing the amount of cotton waste sent to landfills, our yarns also reduce the amount of water, land, pesticides and herbicides used to grow new cotton fibers.
Sock Darning 101 ~ https://solmatesocks.com/blogs/news/darning-socks-101