Wilson Clash 100 Tennis Racquets : The Revolution is Near: The Wilson Clash racquets are unique in their design and technological features that are geared to work with any swing style. A specialized frame geometry gives players premium power and stability from a flexible frame. Features proprietary carbon mapping for excellent control. Wilson and Clash logoing featured throughout the frame. Recommended Stringing: Low 50s for tension with Wilson NXT or Wilson NXT (Cross) and ALU Power (Main).