Katsuji Nishiguchi started the Knitwin brand in 1950 with a single knitting machine he had to operate by hand, sowing the seeds of a company that today houses more than 130 custom-made devices and encompasses three distinct labels. Nishiguchi's grandson, Isato, runs the business now, working closely with Knitwin's designers and engineers to turn the finest fabrics into socks, arm warmers, leggings, and other apparel you won't want to take off.