The Head Hydrosorb Pro Replacement Grip is the most premium of the Hydrosorb family. This grip is thinner for a perfect feel of the racquet and has perforations for higher sweat absorption. There is also the twin channel system that is made up of two materials that ensure cushioning and airflow and the high tack elastomer surface provides the perfect grip. The Hydrosorb Pro is very popular among Tour players and those that want a great feel and a tacky, comfortable grip.