Hydrosorb Comfort Ultegra Di2 Durability is assured through the

Durability is assured through the heat treatment of rollers

with more 3rd party partners in the future like

CFC's or solvents and is fully biodegradable

ANT+® wireless connectivity does not work underwater

Hydrosorb Comfort Ultegra Di2 Durability is assured through theHead Hydrosorb Comfort Replacement Grip is extra tacky to help you keep a firm hold on the racquet. The High comfort PU exterior is very comfortable to grip while the Airbag felt and Shock absorption PU inner layers work to dampen vibrations felt at impact. Head Hydrosorb Comfort Replacement Grip (White) Details: Type: Replacement Grip Performance: Tacky Material: Synthetic Cushioning: High Feel: Low Weight: 20 grams Thickness: 2. 11 mm. Pack Size: 1