Replacement whitewater chest harness for Palm personal floatation devices‚ with a quick-release buckle and load spreader. A) For general paddling and performing swimming rescues: thread the webbing through the plastic quick-release buckle only. B) For bank-based rescues and belaying: thread the webbing through both the plastic buckle and metal back-bar to prevent the harness slipping under load. C) Close the buckle firmly and store any excess webbing away. Check that the webbing is not twisted during threading. Check out the product video for retrofitting a new Chest Harness or trimming your new Chest Harness to length.