Shinjuku is famous as a district with skyscrapers, prestige department stores and night-clubs. But there have been traditional, local industries in Shinjuku, one of which is dyeing, in particular, “Edo Komon” dyeing with fine and subtle coloring originated in the Edo period. Dyeing industry requires clean water, that was supplied by small rivers in Shinjuku, and it is the reason why the industry flourished in the area. Futabaen is a real factory of Edo Komon and other dyeing products made by traditional techniques, and you can experience the traditional dyeing methods. You can take the works back home as a souvenir. Advance booking is necessary. You also buy their products at their gallery and shops.