Originally designed for the military"s special forces, Tech Cord is the strongest and lightest cordellete or shock cord available. Made from superior Technora fibers, Tech Cord boasts a whopping 5000 lbs. tensile strength (50 percent stronger than Spectra) and a melting point of 932 degrees F (compared to Kevlar"s melting point of 260 F ). This cord should be tied with a double fisherman"s knot.