Kernmantle rope

Nylon ropes that were used in yachts for hauling were tested and found useful in climbing and caving and are now the modern standard.

The German company Edelrid introduced the first kernmantel rope in 1953, which revolutionized fall prevention.

Although there were occasional innovations, the rope used today is similar in construction, strength, and durability across manufacturers.

Depending upon the ultimate use of the rope, one or more of its many characteristics (material, structure, finish, color, strength, durability, elasticity, flexibility, price, etc.)

"Boogers", which indicate internal damage to the kern, appear as tufts of white threads poking out from the mantle.

Ropes that have been severely stressed have tapered sections which are visibly or palpably thinner due to crushed or parted (incomplete) core strands.

Parted core strands no longer provide full strength to the rope, and (if not tightly braided) tend to withdraw from the damage with use, twisting & kinking toward the undamaged ends.

Commercial rope cleaning devices are also available, but must be used carefully to avoid kinking (& weakening) the core strands.