What does "kernmantle" refer to?

Kernmantle refers specifically to a type of rope construction that features an inner core (the kern) and an outer sheath (the mantle). This design is critical for many applications, especially in climbing and rescue scenarios, because it combines strength and flexibility. The core typically provides the majority of the rope’s strength, while the outer sheath protects the inner core from abrasion, UV light, and other environmental factors. This combination allows the rope to maintain its integrity under load while also being resistant to wear and tear. In the context of search and rescue, the kernmantle structure is significant because it ensures that equipment used in operational scenarios remains reliable and durable.