The lightest wood types used for core constructions have densities around 275 kg/ m3. Koroyd cores for structural applications typically weigh around 90-110 kg/m3, up to 70% lighter than wood, but are still able to carry up to 22,000 kg on an A4 sized core without collapsing. The cores are created by precisely thermally welding thousands of miniature tubes together to form a structure that consists for more than 90% out of air.
Standardised tests show that the Koroyd core is more than twice as elastic as wood cores used in skis, leading to much better damping; an increased vibration reduction capacity. The capacity to reduce vibration correlates strongly with the ability of the core to temporarily elastically deform, without damaging the structure.
Koroyd inserts in the tips and tails reduce the inertia on the extremities of the skis for a low swing weight and a more manoeuvrable ski in the powder. The unique tip and tail construction also significantly improves dampening to comfortably help you through those hard snow areas.