This patchwork design reflects the Japanese value of "mottainai," or "too good to waste." Boro, which means "rags," describes clothing or bedding that has been patched and repaired many times. Peasants, merchants and artisans in Japan wore it for more than 300 years, from the Edo period in the 1600s through the early Showa period in the 1920s. Patches are often worked in "hishizashi," personal stitching patterns developed by menders. Some Boro items are sewn through generations. The beautiful indigo shades of repaired cotton and rough-spun hemp work together in a subtle patchwork that reflects a culture's devotion to preservation.