Every hour of play dramatically improves fitness levels and conditioning with our random horizontal sweep

Don't throw good balls away for lack of bounce

Fully Random Triple Oscillation: random horizontal

ABZORB® cushioning in the midfoot provides exceptional shock absorption

Zyex® multifilament core prevents tension loss

Volkl V-Star 18 COLLECTION-Type-Tennis Shoes Every hour of play dramaticallyVolkl V Star 18 tennis string features a new and improved material mix for increased feel and durability. This string provides excellent tension hold combined with excellent response time off the racquet. Its performance is second only to natural gut. Power: 10 Control: 7 Durability: 8