Nylon Rope
Nylon Rope is known for its elasticity and tremendous shock absorbing qualities. It has good abrasion resistance, is rot proof, resists oil, gasoline, and most chemicals. It has good resistance to UV rays. Nylon will last 4-5 times longer than natural fibers.
E-Rigging.com has a large selection of 3-Strand Twisted Nylon Rope, Solid Braid Nylon Rope, and Double Braided Nylon Rope in lengths up to and including 1000 feet.