The Black Diamond 8.5 Dry Climbing Rope is a fully treated half or twin rope for winter mountaineering and summer alpine climbing. Black Diamond's Dry Performance treatment protects the rope's core and sheath from water absorption, making it ideal for use in winter, and the 2X2 woven sheath provides all-round durability without making the rope too stiff or unmanageable. **Details:** - Dry Performance—With a core and sheath that are dry treated, our dry treated ropes are protected against weather from the inside out - 2X2 Woven Sheath—Utilizing a 2X2 weave construction, our standard sheath is built to withstand everyday use - Durability and Handling Balance—Purpose-built to balance both durability and great handling, our ropes are not too stiff and not too soft, giving you a great feeling rope that knots easily, feeds through your belay device with ease, yet holds up to a barrage of use - Half/twin ropes must be used in pairs. Do not use as a single rope **Tech Specs:** - Rope Type : Half/Twin - UIAA Factor Falls : 10 [Half] 17 [Twin] - Weight Per Meter : 46 g (1.62 oz) - Static Elongation : 7% [Half and Twin] - Dynamic Elongation : 35% [Half] 33% [Twin] - Impact Force : 5 kN [Half] 7.7 [Twin] - Sheath : Dry 2X2 Woven Sheath - Sheath Slippage : 0.1% - Half Mark : Yes Black Diamond 8.5 Dry Climbing Rope | Half Ropes | BananaFingers