Quick verdict
The best copoly string for you depends on your priority: spin (Hyper-G), control (RPM Blast), or comfort (Poly Tour Pro). For an all-around performer, Luxilon 4G remains the gold standard.
Luxilon 4G
Luxilon 4G delivers exceptional control and spin with a firm, crisp feel that advanced players love. Its octagonal shape bites the ball aggressively, while the stiff polyester construction ensures consistent tension maintenance. Verified owners praise its durability and predictable response, making it a top choice for competitive play.
Identify your priority among spin (Hyper-G), control (RPM Blast), or comfort (Poly Tour Pro). For an all-around performer, Luxilon 4G remains the gold standard.
When it comes to blending control and spin, copoly strings are the go-to for advanced players. Unlike multifilaments or natural gut, these stiff polyester-based strings offer exceptional bite on the ball, allowing for aggressive topspin and precise shot placement. In this guide, I’ve researched five top-rated copoly strings based on verified owner reviews, comparing their gauge, stiffness, and performance characteristics to help you find the best match for your game.
Each pick is evaluated on its ability to deliver spin, control, and durability-the three pillars of copoly performance. I’ve focused on real-world feedback from players who’ve tested these strings in various racquets and playing styles, avoiding any unverified lab claims. Whether you’re a baseline basher or an all-court player, there’s a copoly here that can elevate your game.
How we picked
To select these picks, I analyzed verified owner reviews from major tennis retailers and forums, focusing on consistent feedback about spin generation, control, tension maintenance, and comfort. I compared each string's gauge (thickness), stiffness rating (RA), and construction (e.g., shaped vs. round) against standard industry specs. Only strings with a strong consensus among players of similar skill levels (4.0+ NTRP) were considered. I excluded any claims from manufacturers or lab tests, relying solely on user-reported experiences.
Top picks compared
| Pick | Best for | Score | |
|---|---|---|---|
| Luxilon 4G | Best Overall | 9 | Check price |
| Solinco Hyper-G | Best for Spin | 8.5 | Check price |
| Babolat RPM Blast | Best for Control | 8.5 | Check price |
| Yonex Poly Tour Pro | Best All-Around | 8 | Check price |
| Head Lynx Tour | Best Value | 8 | Check price |
Our picks up close
Luxilon 4G
Luxilon 4G delivers exceptional control and spin with a firm, crisp feel that advanced players love. Its octagonal shape bites the ball aggressively, while the stiff polyester construction ensures consistent tension maintenance. Verified owners praise its durability and predictable response, making it a top choice for competitive play.
Where it shines
- Excellent spin and control
- Very durable, holds tension well
Where it falls short
- Stiff feel can be harsh on the arm
- Not for players seeking power or comfort
Solinco Hyper-G
Solinco Hyper-G is renowned for its exceptional spin potential thanks to its sharp, pentagonal shape. Players consistently report heavy topspin and slice with excellent bite. It offers a slightly softer feel than Luxilon 4G, making it more arm-friendly while still providing great control.
Where it shines
- Exceptional spin generation
- Softer feel than many copolys
Where it falls short
- Not as durable as some stiffer strings
- Tension drops slightly faster over time
Babolat RPM Blast
Babolat RPM Blast is a classic control string with a square profile that locks into the ball for precise directional control. Verified owners highlight its low-powered, predictable response ideal for flat hitters and aggressive baseliners. It maintains tension well and offers good durability.
Where it shines
- Superb control and precision
- Low power for aggressive swings
Where it falls short
- Stiff and can be uncomfortable on off-center hits
- Spin potential is good but not elite
Yonex Poly Tour Pro
Yonex Poly Tour Pro strikes a balance between spin, control, and comfort. Its round shape offers a smooth, consistent feel with decent bite, while the softer polyester composition reduces arm strain. Owners appreciate its versatility for various playing styles and its good tension maintenance.
Where it shines
- Comfortable and arm-friendly
- Versatile performance for all-court play
Where it falls short
- Less spin than shaped strings
- Not as durable as stiffer copolys
Head Lynx Tour
Head Lynx Tour offers impressive spin and control at a more affordable price. Its twisted octagonal shape provides good bite, and the string bed feels crisp yet comfortable. Verified owners note it performs similarly to premium strings but with slightly faster tension loss, making it a great budget option.
Where it shines
- Great spin and control for the price
- Crisp feel with decent comfort
Where it falls short
- Tension drops faster than top-tier strings
- Durability is average
Before you buy
Gauge (Thickness)
Thinner gauges (17, 18) offer more spin and feel but less durability, while thicker gauges (16, 15L) provide more control and longevity. Choose based on your priority: spin or durability.
Shape
Shaped strings (octagonal, pentagonal, square) bite the ball more for spin, while round strings offer a smoother, more consistent feel. Shaped strings are better for spin-oriented players.
Stiffness
Stiffer strings (higher RA) provide more control and durability but can be harsh on the arm. Softer copolys offer more comfort and power but may lose tension faster. Consider your arm health and playing style.
Tension Maintenance
Some copolys hold tension better than others, extending playability. Strings like Luxilon 4G and Babolat RPM Blast are known for excellent tension stability, while others may need restringing sooner.
The wrap-up
The best copoly string for you depends on your priority: spin (Hyper-G), control (RPM Blast), or comfort (Poly Tour Pro). For an all-around performer, Luxilon 4G remains the gold standard.
Quick answers
Copoly strings are made from co-polyester, a stiff material that offers excellent control and spin. They are popular among advanced players for their low power and high durability, but can be harsh on the arm.
Copoly strings lose tension and playability faster than other types. Most players restring every 5-10 hours of play, or sooner if they notice a loss of control or spin.
Yes, the stiffness of copoly strings can contribute to tennis elbow or arm pain. If you have arm issues, consider a softer copoly or a hybrid setup with a multifilament in the crosses.
Start with the mid-range of your racquet's recommended tension. Lower tensions (45-50 lbs) offer more power and comfort, while higher tensions (55-60 lbs) provide more control. Adjust based on your preference.
How we made this guide
We compare every pick on the factors that matter, cross-checking manufacturer specifications against aggregated verified owner reviews. We rank independently and never take payment for placement. We have not personally tested every product; where we have not, the ranking reflects verified specs and owner feedback rather than a hands-on review.
How it was written: this guide was researched and reviewed by the TheTestedHub editorial team for accuracy.
Affiliate disclosure: TheTestedHub is reader-supported. When you buy through links on our site, we may earn a commission at no extra cost to you.
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