eco-melange is blending and twisting of bamboo and cotton threads together. The unique waterless coloring method makes the colors deep and true, and they’re bleachable and BPO safe. The two-tone Silver color looks like a texture due to the way the Black bamboo threads are twisted around the White cotton threads. The line of eco-melange bedding is a bit cozier and comfier than the 100% bamboo sheets.