The YouTek Radical Lite is a lighter, more powerful version of the new Radical series. It features Head's YOUTEK technology that incorporates a new "smart material" into the frame called d3o. d3o is located in the shaft area where the racquet flexes the most and is able to sense the needs of the player during different strokes. On high impact strokes, the molecules lock together instantly to increase the stiffness of the racquet for more power. On slow speed strokes, the molecules absorb the impact to provide a softer touch for better feel. It has a large sweet spot for off-center hits and an open string pattern for easy access to spin. It's a forgiving, powerful frame for players with short to moderate swing styles. Recommended for level 3.0+.