SP (Shock Pack) lanyards are comprised of "tear webbing" which is woven in a manner that allows the webbing to tear when it has a load applied to it. This tearing absorbs a significant amount of downward force under load, reducing injury. This tear webbing is folded and shrink-wrapped into a compact 1 x 2 x 6" (2.5 x 5 x 15 cm) pack that is sewn into the lanyard next to the body connector.
Certified to CSA Z259.11-05 standards
Made with a superior grade, heavy-duty 1" (25 mm) polyester webbing for maximum strength with tear webbing shock absorber
PeakWorks E4 SP lanyards have a capacity range of 110–220 lbs (50–100 kg)