Dynamic climbing lines are the standard for situations where a fall is likely. Dynamic climbing lines are a kernmantle construction of Nylon over Nylon. New England Ropes climbing lines are designed to offer a stable rope with high-energy absorption. This reduces the impact forces on the climber. Each of our climbing lines offers superior abrasion resistance and high durability. Each of New England Ropes Dynamic Climbing lines offers a dry treated core. For maximum dry treatment choose a 2x Endura Dry rope which has a dry core and specially treated cover.