Our socks have been made in Japan for over 30 years. For a while, I was afraid I would no longer be able to produce socks. Between the age of the special machines my socks required and difficulty to keep them going, I was afraid we'd seen the end! Just recently, another factory in Japan contacted me to say they missed making our special socks and they did have a few of the double knit machines still working well. Double knit means more design variety and greater strength and comfort on the foot. Very few of these machines exist in the world. Double knitting uses two cylinders which means longer production time and requires skilled engineers.