Head YOUTEK Prestige Midplus Racquet 

The Prestige MP provides outstanding touch and control for great playability and is the choice of pros and competitive players everywhere. Now featuring YouTek™, which enhances your performance and brings out the best in you..

YOUTEK: YOUTEK™ combines superior technologies to perfectly match your individual needs. Whether your game is aggressive and adventurous or consistent and smooth, YOUTEK™ enhances your performance and brings out the best in you. YOUTEK™ incorporates different technologies to give you the individual benefits you need to match your playing style. In HEAD's tour racquets, YOUTEK™ includes d3o™, Grommets with Teflon® friction reducing polymer and AraMidplus bumpers.

d3o: d3o™ belongs to the "smart materials" category and is a futuristic material with abnormal behavior characteristics. More specifically d3o™ changes its behavior under dynamic loading or impact. Integrated in the lay-up and positioned in the shaft area where the racket flexes the most, d3o™ maximizes performance and offers new possibilities for players.

d3o™ is able to sense the needs of the players during different strokes. It's able to adapt to YOU. On high speed impacts (aggressive shots), the smart molecules lock together within nano seconds and dramatically increase the stiffness of the racquet to provide maximum power. On slow speed impacts (slices or drop shots), the smart molecules absorb the impact to provide a softer touch for better feel. What does this mean to a tennis player? Passing shots are even harder and drop shots have more precision rewarding your spontaneity and supporting your courageous decisions.

Teflon: Less friction gives you more power - HEAD 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 much less energy loss and much more power.