Mammut Tubular Dyneema 12mm Contact Slings are the perfect choice for long trad routes and big-wall climbs. Lighter and more abrasion-resistant than regular nylon slings, Dyneema is a better material for routes where the granite acts like sandpaper on your gear. Use the 60cm length for over-the-shoulder slings, the 120cm length for tying off horns and chockstones, and the 180cm length for a burley cordelette.