Lightweight Ropes Fast and light. Every gram counts when hiking in on a long approach or pulling hard on your latest project. Photon 7.8 mmOur lightest, thinnest, dual-certified half and twin rope, the 7.8 mm Photon gives new meaning to the saying, less is more.Buy Now Nano IX 9.0 mmCertified as a single, half, and twin rope the Nano IX is lean, mean and versatile: perfect for sport routes, ice, or mixed conditions.Buy Now Aero 9.2 mmThe Aero balances a durable, tough sheath with a lighter core construction that's ideal for sport, mixed and ice climbing. Buy Now Ion R 9.4 mmIon R is the crossover artist that performs well across multiple climbing disciplines without playing favorites.Buy Now