A: Melange towels are made with a 50/50 blend of bamboo and cotton threads. The unique waterless coloring method makes the colors deep and true. Melange linens are also bleachable and BPO safe. The two-tone look is created by twisting White cotton threads around Black or Beige bamboo threads to create the two-tone loops. They’re super plush and absorbent, as well as mildew and odor resistant.