Combining Power Fiber II and Cyclone: Volkl’s Psycho Hybrid was born. Giving you all the advantages of a gut-like performance string, Power Fiber II helps create exceptional feel & SHOCK reduction. While Cyclones unique 20 sides enhance spin, control, and durability. PSYCHO is going to grip the ball like CRAZY providing you top notch playability. With this hybrid you’ll be able to go PSYCHO on the court!!