Men's Limited Artist Series: Sukumo IndigoLimited edition artist made, by Ricketts Indigo. Trained in traditional Japanese indigo growing, fermenting and dyeing techniques, Ricketts Indigo exists on the forefront of the resurgent interest in plant dyes. These shirts are truly wearable art. Origins: Organic cotton grown in USA, yarn spun and knit in USA, sewn in the San Francisco Bay Area. Organic indigo grown, fermented and dyed by Ricketts Indigo in Indiana. Questions? We would love to help