Celebrate 20 years of colorful knitting magic with the Opal Regenwald 20th Anniversary Collection! "Regenwald" means "Rainforest" in German, and this beloved collection draws inspiration from the vibrant ecosystems it helps protect. Opal, a favorite among sock knitters, is known for its irresistible, self-patterning yarns that make every project an adventure. With each 100g ball (465 yards) of fingering-weight, 4-ply yarn, you'll create eye-catching, one-of-a-kind knits that practically knit themselves! Made from a durable blend of 75% superwash wool and 25% nylon, this yarn is perfect for socks and accessories that will last. Best of all, a portion of the proceeds goes to foundations that work to protect rainforest habitats from development and deforestation. So, go ahead-treat yourself to some Opal Regenwald and feel good knowing your knitting is making a difference!