An extremely low-stretch kernmantle rescue lifeline constructed of 100% High Tenacity Polyester (HTP) fiber. The polyester fibers do not absorb water, so there is no loss of strength or increase in weight if the rope gets wet. With less than 2% stretch at 300 lbf, Static-Pro is an excellent choice for high lines, long rappels, and many mechanical advantage haul systems. Polyester fiber ropes have better resistance to acids than nylon, which makes Static-Pro the preferred choice in acidic environments. Favored for its excellent hand, knotability and UV resistance, Static-Pro Lifelines come in solid colors with a single stripe to prevent confusion with CMC Lifeline and other solid color kernmantle ropes.