Nylon will stretch by about 20% at 50% of its breakload, compared with 12% stretch for Polyester at equivalent loads. This high elongation makes 3 Strand Nylon a good choice for anchor warps, mooring warps and mooring risers. Care should be taken when choosing 3 Strand Nylon ropes through, as Nylon is susceptible to external environmental factors such as salt water and UV.