Tungsten disulfide inorganic multiwall nanotubes (INT) are provided as a high chemical purity powder (>99%). INTs can be easily dispersed in a variety of media including polymers, solvents, and epoxy resins. They are needle-like particles with a large aspect ratio showing high crystallinity. INTs exhibit excellent shock absorbing properties and impact resistance. INTs are semi-conducting materials. INTs can be used to strengthen composite materials and to simultaneously improve their elastic and thermal properties. INTs increase the wear resistance of host matrices. They also reinforce polymer microfilaments and nanofibers.