Dyneema 240cm climbing sling. Lightweight sling made from high-strength Dyneema. Colour-coded in 60, 120, 180 and 240cm lengths. Shop for climbing slings from leading brands including DMM, Edelrid and Mammut from our collection below The Mammut Contact Sling has proven itself as a universal and super-light sling on the mountains and cliffs over the world. Climbing slings are generally now made with either nylon webbing or Dyneema. It also absorbs less water than nylon – an important consideration for winter climbing. Need help? The slings are durable, pack well, and do what they should. . Manufactured using processes that reduce the risk of negative environmental impact. Made with chemicals safer for human health and the environment. At 240cm this sling is great for building belays, anchoring to the largest boulders or spikes and for extending the most awkwardly placed runners.