Edelrid's Topaz ColorTec 9. 2mm Climbing Rope is certified as a twin, double, or single rope, so it's suitable for tough sport climbs, wandering trad routes, and even the occasional ice climbing. It has a Dry Shield treatment to repel water and dirt, so it doesn't gather weight, gunk, or moisture over time. Edelrid gave the Topaz its ColorTec bi pattern weave, which makes it easy to find the middle point of the rope. Edelrid also finished the sheath with its Pro and Thermo Shield treatments for silky smooth handling, so this lightweight cord is easy to clip, feed out, and knot.