Yale Double Esterlon is a premium double-braided lowering line. Ideal for use in lowering systems, Double Esterlon supplies unmatched rope strength and durability. Constructed using Allied Signals high-tenacity type IW81 cordage finish polyester, Double Esterlon is the strongest polyester double braid available. Low stretch, long wear life and superior strength make Double Esterlon the rope to choose for use in lowering devices, pulleys, speedlines and rigging slings. To enhance performance, Double Esterlon is coated with Yales Tree-Grade Maxijacket urethane. In addition to the increased abrasion resistance it provides, Maxijacket is available in a variety of colors which we use to colour-code ropes for easy size identification.