Best combo to generate grip and roll on any surface
Dual density technology is a construction of 2 layers of different urethane. The inner band is generally very soft to enhance your comfort and create some deformation in the wheel during the push, giving you a larger footprint and increased grip in every stride. The outside urethane is harder to give you the maximum roll you dream of. The Dual density technology is a revolution for all skaters willing to get the best out of a wheels performance.