Japanese Style Red Koinobori Travel Laundry Bag - DOIY. This cotton travel laundry bag is shaped as a “Koinobori” (mythical Japanese carp-shaped wind socks). It is a very handy travel mate thanks to its perfect hand-luggage size. Pack it flat and feed it with your dirty clothes during your trip. Back home, you can empty the fish directly to the washing machine and even clean your travel bag together with your dirty clothes.