Dyneema is the world strongest fiber and is 15 times stronger than steel. The rope is the choice for every serious sailor worldwide because it has very little stretch, it’s lightweight, easy splicable and is UV-resistant. Dyneema is available in three different types: The standard SK75, the 13% stronger SK90 and the low creep DM-20. DM-20 is developed by DSM to replace standard steel rigging, it has very little creep and is stronger than the standard SK75.