The DMM Tendon offers a streamlined solution for enhancing the efficiency of knee ascenders during ascents. Designed to optimize the ascender lifting process, the Tendon features a high-performance shock cord routed around the user's waist, ensuring an excellent elongation range and consistent tension as it stretches. The system retracts neatly inside the tubing when not ascending, providing a tidy and compact storage solution. Engineered with a smooth, flared ferrule inlet to the tube and a Dyneema mantle, the elastic reduces wear, improves efficiency, and extends lifespan. The easy-to-install Tendon Tube Clips seamlessly interface with the attachment holes on the DMM Kinisi harness, ensuring a secure connection. The Tendon includes the new XSRE Swivel Carabiner, offering a flexible and compact means for connecting to the knee ascender. By adding a second XSRE Swivel Carabiner (sold separately), users can double the lifting power and maintain alignment for optimal performance.