The Evolution VR10 Standard Climbing Rope is one of Sterling's original designs. This rope is the epitome of "if it isn't broken, then don't fix it." Meeting UI standards, the Evolution VR10 is a trusty choice whether you're a beginner or a projector. Its burly 10. 2mm diameter offers optimal handling if you're learning how to belay, and experienced belayers won't complain when their climbers come tumbling down.