Pro X
Best performance equipment for competitive players.
Engineered for players who demand maximum power and precision, this string provides a firm, responsive feel that excels during aggressive play. The specialized hexagonal shape allows for significant spin generation, helping to control the ball's trajectory during high-velocity shots. Developed alongside professional athletes, it offers a stiffer alternative to softer options, ensuring an explosive response off the string bed. Whether you are looking to dominate from the baseline or add extra bite to your serves, this option delivers the consistency and performance required for competitive tennis at any level.
$13.95
More Pro X Options
Owner Satisfaction
4.5
/ 5
Category Rank
45
/ 582
#45 in Tennis Racquet String
Price vs Category Average
-50%
Below average
Material
Polyester
/ Polyester
Who it's for
- Strategic players who prioritize precision and touch in their game.
- Frequent players needing reliable equipment that endures rigorous use.
- Aggressive players seeking to dominate rallies with powerful shots.
Who should skip it
- Budget-conscious players or casual enthusiasts unwilling to invest heavily.
- Beginners or intermediate players seeking an easy-to-use, immediate performance boost.
- Players with arm sensitivities or those preferring lighter, faster-swinging equipment.
Performance breakdown
Spin Generation
The hexagonal shape bites into the ball for aggressive, heavy rotation.
Power Output
Firm construction translates swing speed into explosive, high-velocity shots.
Control Precision
Predictable response allows for pinpoint accuracy on high-velocity groundstrokes.
Arm Comfort
Stiff polyester material prioritizes performance over shock absorption.
Durability
Robust construction resists fraying and snapping during intense, competitive play.
Tension Maintenance
Holds string tension well, keeping the playability consistent over time.
Key Specs
Material
Polyester
Construction
Hexagonal cross-section
Length
40 feet
Gauge
15L (1.35mm), 16 (1.30mm), 16L (1.25mm), 17 (1.20mm), 18 (1.15mm)
Power Level
High
Control Level
High
Spin Potential
High
Comfort Level
Low
Know before you buy
The Pro X is built for aggressive, competitive players who prioritize power and spin over comfort. If you have a fast swing speed and want a firm, responsive string that helps you control high-velocity shots, this is a strong choice.
The unique hexagonal cross-section acts like a gear, biting into the ball at impact to generate significant spin. This helps you hit heavier, more controlled shots that dip into the court, which is particularly useful for baseline dominance.
No, this is a firm, polyester string designed for performance rather than comfort. If you have a history of tennis elbow or prefer a softer, more dampened feel, you might find this string too stiff.
Thinner gauges like 17 or 18 offer more spin and a softer feel but will break faster. Thicker gauges like 15L or 16 provide maximum durability and a stiffer response, making them better for players who break strings frequently.
Like most polyester strings, the Pro X will experience some tension loss over time, which is a trade-off for its high performance and spin potential. It is best suited for players who re-string their racquets regularly to maintain that crisp, firm feel.
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$14