3M Coban - 4" Self-Adherent Wrap is made of non-woven material and fibers to create an elastic bandage. This self-adherent bandage sticks to itself but not to other materials or skin. The 3M Coban compression wrap is water-resistant and lightweight. Coban elastic bandage offers sustained and reliable compression without using pins, clips, or tape. Tan, Blue . Each, Case of 18.