Co-poly tennis strings dominate modern tennis because they offer spin, control, and durability.
But there is one common problem:
👉 traditional polyester strings can feel too stiff and harsh.
That’s why soft co-poly strings have become increasingly popular.
They are designed to:
- reduce stiffness
- improve comfort and feel
- maintain control and spin
👉 without losing the performance benefits of polyester.
In this guide, you’ll learn:
- what makes a co-poly string “soft”
- who should use soft co-poly
- how to build the right setup
- and the best soft co-poly options for modern play
🧠 What Makes a Co-Poly String “Soft”
Not all polyester strings are the same.
Soft co-poly strings are engineered with advanced additives that:
- increase flexibility
- reduce stiffness
- improve elasticity
As a result, they offer:
- more comfortable impact
- longer ball dwell time
- better feel on contact
👉 The ball stays on the strings slightly longer, which improves control and touch.
⚙️ Why Players Choose Soft Co-Poly
🎯Improved Comfort
Compared to traditional polyester:
- less shock on impact
- reduced vibration
- more forgiving response
👉 This makes a big difference during long matches or frequent training.
🔄 Better Feel & Touch
Soft co-poly strings provide:
- more pocketing
- improved feedback
- better touch on slower shots
⚖️Balanced Performance
Soft co-polys still deliver:
- strong spin potential
- reliable control
- solid durability
👉 They are a balance between performance and comfort.
🎾 Who Should Use Soft Co-Poly Strings
Soft co-poly is ideal for:
- intermediate to advanced players
- players transitioning from softer strings
- players who want control without harsh feel
- players experiencing mild arm discomfort
👉 They are not ideal for very slow swing speeds or beginners.
🔥 Best Soft Co-Poly Tennis Strings (Mayami)
A balanced co-poly designed for comfort and control.
- smoother response compared to stiff poly
- easier access to depth
- stable and predictable performance
👉 Best for: players transitioning into polyester setups
A softer-feeling co-poly with added spin characteristics.
- twisted structure increases dwell time
- improved feel at impact
- strong spin potential without stiffness
👉 Best for: players who want spin with a more comfortable response
🎯 Best Soft Co-Poly Setup
To get the most out of soft co-poly strings:
- String type: soft co-poly
- Gauge: 1.23–1.25 mm
- Tension: 20–24 kg
👉 Slightly lower tension enhances comfort and feel.
⚖️ Soft vs Stiff Co-Poly
Soft Co-Poly
- more comfortable
- better feel
- slightly more power
Stiff Co-Poly
- more control
- more durability
- firmer response
👉 Choosing between them depends on your playing style and physical needs.
🧠 Common Mistakes
❌ Stringing Too Tight
Even soft poly becomes harsh at high tension.
❌ Expecting Multifilament Comfort
Soft poly is still a performance string.
❌ Not Restringing in Time
Dead poly loses comfort and becomes stiff again.
🧵 How Soft Co-Poly Fits Into Your Setup
Your performance depends on a full system:
- strings
- tension
- racket
- swing mechanics
👉 Soft co-poly improves comfort, but it must be paired with the right tension and setup.
To understand how everything works together, see our complete tennis string performance guide.
🏁 Conclusion
Soft co-poly tennis strings offer the best balance between:
- comfort
- control
- spin
👉 They are the ideal choice for players who want polyester performance without excessive stiffness.
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