New 8.5 Egress Super-Static Rope just got an upgrade. It now has an UHMPE/ Polypropylene Core. This makes it super-static and lighter. It is made rugged enough for whatever you might throw its way. The sheath is made from a Premium mix of Polyester and Ultra High Molecular Weight Polyethylene (UHMWPE) yarns to give you top of the line strength and a smooth decent.