The Mach Express Dyneema has it all. A superlight 8mm DyneemaAR sling connects the lightest carabiner in the world to the new superlight, full size Photon Wire. The Nano 23 is great for slings and chains and the Photon Wire makes for easy clipping. Thin DyneemaAR slings are a great choice for alpine draws because not only are they light, but they do not absorb water so they won't get soggy in wet conditions or freeze up. A good draw for long routes should be: Light they are being carried a long way Compact sometimes you need to carry a lot of them Versatile you never know what kind of mank you might be clipping Functional easy to use even when tired Equipped with the Nano 23 for gear and the full size Photon Wire for the rope Note that this item of climbing safety equipment is non returnable. Please call us toll free at 877 236 8428 or e mail bentgatebentgate.com with any questions.