Mammut's Alpine Sender Dry Rope is light and packable even compared to most twin and half climbing ropes. Mammut made it for ice climbing, mixed climbing, mountaineering, multi-pitches, and alpine climbing. Its Dry treatment exceeds at limited water absorption to ensure proper handling on ice and snow, or if you come across a puddle on a multi-pitch. Mammut added a middle marker to quicken up rappels and half rope setups.