I spent most of late summer hiking long days in the mountains to access seldom-visited peaks in the Sierra. With climbing gear and a weeks' worth of food, the last thing I needed was a bulky rope adding extra weight on my back. Enter the Sterling Fusion Nano IX. This is a game-changer for those looking for a high-performance and reliable rope for climbing in the alpine or sending their latest proj. At a diameter of 9mm, it can be used as a large-diameter half-rope or as a skinny..." go to full review