Tour Premier All Court Tennis 4-Ball Can CF23MAY the Shift 99L has an

the Shift 99L has an innovative string pattern and bending profile built to be stable

the Giants players dubbed him "The Duke"  and years later

Featuring a unique octagonal paper container

and the legendary Roger Federer uses this string as a hybrid with natural gut

the NFL game ball took on this nickname too

Tour Premier All Court Tennis 4-Ball Can CF23MAY the Shift 99L has an*Updated packaging for 2026. Armed with a killer new identity, the Tour Premier ball still delivers the same championship performance. Australias tournament caliber ball brings consistency and speed to the court, giving you every opportunity to go for your shot.