Jawoll - tried and tested a million times and for many years a sock wool classic - including reinforcement yarn for heels and toes to extend the life of your socks! LANGYARNS JAWOLL is the Rolls Royce of sock yarns. The wool is sourced from Corriedale sheep: for JAWOLL we only use wool of the finest provenance from Chilean Patagonia. During shearing the best parts of the fleece are selected and sorted out. The average thickness, the diameter of the fiber, is just 25 microns (1 micron = 1/1000 mm) so the wool feels very soft and is very comfortable to wear. The Corriedale sheep live all year round in the natural wilds of Patagonia. Because of the scant food supply, their wool remains white and grows to an average staple length of 10cm. This makes it take dye well, the colors are brilliant and the finished yarn is highly resistant to pilling (knot forming). In every 50g ball there is a spool of reinforcement yarn for knitting in to strengthen heels and toes. This will increase the lifespan of your socks. Due to the superior quality of the fibers JAWOLL is also excellent for baby or toddler knits and for men's knitwear.