Kozo (mulberry) is a traditional fiber used to make washi that produce exceptionally strong archival papers. ‘Kozo Thin Natural’ AIJP has a warm light ecru tone and is recommended for black & white photos, giclee prints, museum quality reproductions, fine art, scrolls etc…It is great for backlit, wrapping and other applications where you need a very strong / semi-transparent paper - Not recommended for images with high ink-density as thin papers may buckle slightly. (Optical Brightness Level = 23)