Their walls have a corrugated structure with abundant pores, as in corrugated fiberboard, where the solid membranes have a graphite-like layered structure.
CCTs have technologically attractive properties such as ultra light-weight, extremely high strength, excellent ductility and high conductivity - which make them possibly suitable for clothing.
The tubes exhibit an ultra low density comparable to that of carbon nanofoams.
[2] This exceeds the specific strength of the strongest carbon nanotube; this strength is sufficient to support a space elevator[3] if retained in a fabricated macroscale structure.
CCTs conduct electricity and show some of the properties of semiconductors.