What Our Gearhead® Experts Are Saying: "I climb with the Crag Sender 9. 0 when I want to go light without compromising safety. It feeds super smooth through my belay device and holds up well even on sharp rock. The Dry treatment’s a must for alpine missions, and I love that it comes ready to climb right out of the bag." When we’re chasing big sends and every ounce matters, we reach for the Mammut Crag Sender Dry Rope 9. 0mm. Designed with serious climbers in mind, this triple-certified rope delivers ultralight performance with the strength and reliability needed for sport routes, alpine missions, and everything in between. The Sender construction uses a tighter weave of high-quality yarns for a thinner sheath that handles beautifully while maintaining impressive durability. With Dry treatment that exceeds UIAA standards, it shrugs off water and dirt in the most demanding conditions. Whether we're linking pitches in the alpine or pushing limits on a project, the Crag Sender gives us confidence in every clip.