Among Mammut's arsenal of Crag climbing ropes, the Crag Dry Rope stands out as an all-arounder for rock, ice, and every route in between. Mammut's Dry treatment excels UI's standards for abrasion-resistance as well as water-resistance, so this rope thrives in both desert and alpine environments. The thicker 9. 8mm diameter delivers longer-lasting durability and better handling than it's skinnier counterpart. Mammut added a center mark to quicken rappel rigs.