Polyester cover over a polyamide core. This combination of fibers provides a balanced rope construction of extremely high strength. Stronger than either 100% polyamide or 100% polyester double braids, but offering less elongation than an allpolyamide rope. The polyester cover offers the same excellent abrasion resistance found in an all-polyester rope. Ideal for uses requiring good energy absorption, high strength, and wet abrasion resistance.