Real indigo-dyed clothing is not like the blue you know. Richer than the chemical blues used on most fabrics today, real indigo dye comes from a plant and has a surprising range of qualities: on fabric it is antibacterial, flame resistant and repels odor and dirt. With roots in Japanese culture dating back to the 1600s, indigo-dyed fabrics were worn under the armor of samurais to help keep bacteria from wounds. Today, five farmers keep the tradition of growing indigo alive in Tokushima, Japan.

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