This innovation combines the very tacky, elastic top rubber sheet with a modern, slightly harder offensive sponge. The new sponge/top rubber sheet combination makes this High Energy Tension rubber the ideal weapon for any spin-oriented allrounder. The extremely tacky and flexible top rubber sheet virtually tacks the ball and produces fantastic spin both in topspin play and in defensive strokes with heavy backspin. Thanks to the optimized offensive sponge, the VS > 402 Double Extra is even more dynamic than the VS > 401, which is a great advantage in topspin play. However, even with the higher speed, the rubber still provides for high control and tackiness for dangerous backspin variants.