Head D30 Technology World's First Dynamic Material Tennis Racquet D30 is a specially engineered material made with intelligent molecules. They flow with you as you move but on shock lock together to absorb the impact energy. In a tennis racquet, this means that for soft shots, the racquet can have a soft touch feel; but can lock up for ultimate power on the hard shots.  This really works as shown by the success of top 10 pros like Andy Murray, Novak Djokovic, and Robin Soderling. Made by D30 Lab for Head.  Click to see their web site.   Head MultiZone Grip Single grip with zones of different surfaces Replaces the traditional single material grip with zones of functionally different surfaces. Unique sweat channels Aggressive design One piece design provides a smooth surface for added feel and excellent control Embossed sweat channels provide excellent absorption & superior tackiness New design for a very unique modern look   Head Teflon Grommet Technology Grommets with Teflon friction-reducing polymer Friction is a force that holds back the movement of a string when it comes into contact with a grommet. The new HEAD Grommets with Teflon® friction reducing polymer creates a self-lubricating effect in the base material, allowing the strings to slide through the grommets with nearly no friction for less energy loss, more power, and a bigger sweet spot.   Head MicroGel Technology Rock Solid Feel and Touch: With the lowest density of any material, HEAD MicroGel™ is a revolutionary new silicone-based material. HEAD has combined MicroGel ™ with stiff and strong carbon composite fibers to create a racquet with incredible responsive qualities. On ball impact, MicroGel™ uniformly distributes the impact load around the frame to provide the most rock-solid feel and superior touch ever achieved in the game. What Happens During Ball Impact: MicroGel™ deforms and compresses, absorbing and dispersing the impact to the entire frame, then returns quickly to its original shape.   Head LiquidMetal Technology Liquidmetal® technology The Liquidmetal material is applied to four strategic areas of the racquet’s head and is the only material that utilizes all the energy your swing generates. Due to its liquid atomic structure, no energy is lost on ball impact. Liquidmetal® makes the difference The secret of Liquidmetal’s performance is its liquid atomic structure. Compared to conventional metals, it offers advantages that are far beyond today’s racquet technology. Liquidmetal®: The unique Liquidmetal atomic structure does not deform on impact, resulting in ultimate energy return. The benefit to every player: 29% more power The unique Liquidmetal atomic structure is 2 1/2 times stronger and delivers 29% more power than conventional carbon fiber or titanium Why? Liquidmetal technology efficiently utilizes the pure energy of ball impact, making the full energy available for maximum power return. Liquidmetal® - Pure Energy. Perfect Power.™