ISO (Isometric Square Head Shape)This exclusive Yonex innovation results in a sweet spot up to 48% larger than a traditional oval head shape. According to Yonex, it ensures more power and control with fewer off-center shots.
IPS (I.P.S. System)By inserting extra weight at the three and nine o'clock positions, a greater "moment of inertia" is created on the face of the frame, reducing torque (twisting) and increasing overall frame stability.
Neo CS Carbon NanotubeYoenx delivers a more flexible shaft for greater comfort. Also increases dwell time for easier access to spin.