Mammut 8.7mm Serenity Dry: Light, Stiff and Specialized
Although rope technology has greatly improved in the twenty-some years since I started climbing, I was still skeptical when a lime-green Mammut 8.7mm Serenity rope showed up on my doorstep. The manufacturer states this rope is designed for single, double and twin configurations. Mammut also says the rope is designed to stretch 31 percent when arresting a fall. When used as a single, the Serenity is the thinnest-diameter cord in Mammut’s line.