Ultra-high-strength accessory cord thanks to the HMPE core. The polyester sheath protects the core from the elements, makes the cord easier to grip, and increases knot strength. At the same time, the HMPE core provides a low weight and high cut resistance. This makes the HARD LINE suitable as a means of connecting several anchor points (belay station installation) or as a thread, a rocky knoll sling, or a prusik sling, for example.