About 150 years ago, Japan was a country filled with aizome, or indigo blue. Visitors from abroad reveled in its ubiquity, calling the color "Japan Blue". During the Edo Period, about 80% of the indigo was Tokushima-made Awa-Ai, known for its delicate hues and color fastness. The all-natural aizome is experiencing decline in modern day, and local craftspeople and fashion experts have come together to ensure the traditional craft is kept alive.