Nylon cord stretches to absorb shock. It is mildew- proof, allowing it to be stored when wet. Because it stands up well to salt water, nylon cord is almost exclusively used as marine cordage in the fishery industry for trapping. You see it used to pull up lobster and crab traps out of the water. Our nylon cord comes as either an elastic cord or non elastic cord and in a wide range of diameters. The non elastic cord can be ordered in spools, hot cut pieces or cut & tipped pieces.