Edelweiss Sharp 8.5mm Super EverDry is a half rope that pulls its weight--and then some.Many traditional, alpine, and ice climbers prefer a set of half-ropes to just one rope. The advantages include reduced rope drag in wandering situations, longer rappels, and less weight. Some climbers consider the thinner diameter of half ropes to be a disadvantage in certain situations as it makes the rope more sensitive to abrasion and being cut when running over sharp edges Edelweiss, however, provides an elegant solution to this problem with their Sharp Edge Resistant Ropes. Where most conventional ropes fail when drop tested over a 0.75mm edge radius, the Sharp Ropes remain intact. All Edelweiss Sharp Ropes come standard with the Super EverDry and Perdur treatments the Super EverDry treatment gives both the sheath and the core of the rope a hydrophobic coating, and the Perdur treatment means this rope is 33 more abrasion resistant than untreated ropes of the same diameter. Wow Comes in 60m and 70m lengths. What more could you ask for?