When looking for a rope that can handle mixed terrain between rock and ice, look no further than the versatile Mammut Twilight Dry Climbing Rope. One of the thinnest and lightest in its class, the 7. 5mm Twilight meets the standards of both half and twin ropes, a design intended for you and your climbing partner to both enjoy. Its dynamic sheath is abrasion resistant while the dry treated construction ensures long lasting protection for all your climbing and mountaineering pursuits.