Fast has never been more comfortable. The NITRO PRO INDOOR is a serious evolution of a premium lightweight performance shoe created and designed for players who are very serious about their game. The shoe also comes with the HEAD TRI-NRG technology, a special triple density midsole construction with a shock-absorbing heel, a rigid EVA frame around the midfoot as well as a high rebound EVA forefoot element for a faster forward motion. Its non-marking (ich glaube, non marking ist sonst ohne Bindestrich) natural gum rubber on the outsole provides amazing grip on every indoor court. And for the hottest moments on all parts of the court, the NITRO PRO comes with the HEAD Cooling System, which is integrated into the sole unit. The perfect combination of explosive energy and agile finesse, the NITRO PRO is your new best friend on court.