Yale Double Esterlon proves itself as the optimal choice for lowering systems. Engineered with strength, durability, and minimal stretch in mind, Double Esterlon stands out as a double-braided rope crafted from premium over finish polyester fiber in both its sleeve and core. Easily identified by two green strands in the cover, this rope is further enhanced with Yale's Tree-Grade Maxijacket urethane coating for heightened performance and longevity.