The Sabian 13" HHX Evolution Hi-Hats have the soul of traditional Turkish cymbals and the body of a vanguard cymbal series for atmosphere and projection in one model. Developed in tandem with the legendary Dave Weckl, the Evolution Hats pair a medium top with a heavy for immediate, defined response and huge hammering patterns to retain that moody Turkish tonality while breaking through the ceiling with plenty of available volume.