String Project Armour Soft, monofilament tennis string
String Project Armour Soft is a modern, technological competition monofilament tennis string that removes harsh, dry impacts, leaving only the pleasure of contact with the ball. An evolution of the renowned Armour blend, with a greater share of Soft polyester for superior resilience, tension maintenance and a natural inclination towards power and spin. Arm Friendly® certified.
- Arm Friendly® Monofilament
- Gauges 1.20 · 1.24 · 1.29 · 1.33 mm
- Evolution of the Armour blend
- Tension 18–22 kg
Playing profile
String Project Armour Soft stands out for its exceptional tension maintenance (9/10) and resilience (9/10), ensuring consistent performance over time. Spin (9/10) is generated naturally, control (8.5/10) lets you build the point with precision, and power (8/10) delivers balanced drive without sacrificing feel.
- Spin9/10
- Tension9/10
- Resilience9/10
- Control8.5/10
- Power8/10
- Comfort8/10
Ratings and technical specifications measured in the laboratory by Pro-t-one (Eng. G. Medri) — laboratory test report 1.24 mm (PDF).
Competition performance with the pleasure of impact
On court, Armour Soft removes the harsh, dry impacts typical of competition polyesters, leaving only the pleasure of contact with the ball. Responsiveness is high, with natural, fluid power and spin generation. It feels like a consistent, reliable string that keeps its characteristics session after session.
Soft, enveloping impact
Armour Soft removes harsh impacts, offering comfort (8/10) with Arm Friendly® certification. The greater share of Soft polyester dramatically reduces harmful vibrations transmitted to the arm.
- Removal of harsh, dry impacts
- Reduced arm vibrations
- Joint problem prevention
- Consistent, reliable feel
Competition-level responsiveness and spin
With 9/10 spin and 8/10 power, Armour Soft delivers complete competition performance. Resilience (9/10) ensures consistent responsiveness over time, while tension maintenance (9/10) keeps its characteristics unchanged.
- Natural, fluid 9/10 spin
- Balanced 8/10 power
- Top-tier 9/10 resilience
- Exceptional 9/10 tension maintenance
The evolution of the Armour blend
Armour Soft is an evolution of the renowned Armour blend, with a greater share of Soft polyester that gives it superior resilience and a natural inclination towards power and spin. This formulation removes the harsh impacts typical of traditional polyesters, offering a soft, enveloping playing sensation without giving up competition responsiveness.
The manufacturing processes
Spring Load
This technology allows the molecular chains to contract repeatedly, resulting in minimal tension loss and, above all, greater stability of the string's properties.
Pre-Stretch
Thanks to the "pre-stretch" of the core, the entire string minimises tension loss while at the same time allowing a lower stringing tension.
Double Heating
The "heat treatments" remove internal stresses and even out any irregularities in the string. They also make the strings more flexible and elastic.
Liquid Wax
The string is finished with a layer of wax. This treatment significantly extends its lifespan by reducing wear and making stringing easier.
Low Friction
Reducing the string's friction delivers reduced string movement, greater spin potential thanks to improved snap-back, and a longer lifespan.
Technical data sheet
| Feature | Value |
|---|---|
| Type | Arm Friendly® competition monofilament (Armour blend with Soft polyester) |
| Cross-section | Round |
| Gauges | 1.20 mm (17) · 1.24 mm (16L) · 1.29 mm (16) · 1.33 mm (15L) |
| Dynamic stiffness | 235 g/mm |
| Manufacturing processes | Spring Load, Pre-Stretch, Double Heating, Liquid Wax, Low Friction |
| Recommended tension | 18–22 kg |
The right string if you see yourself here
Competitors seeking comfort
Those who want high competition performance without sacrificing comfort: the responsiveness of a competition string with the soft impact needed for extended sessions.
Players with a sensitive arm
Those who suffer from arm sensitivity or want to prevent joint problems: the Arm Friendly® certification and the greater share of Soft polyester dramatically reduce harmful vibrations.
Those seeking consistency over time
Those who want a string that keeps its properties session after session: with 9/10 tension maintenance and 9/10 resilience, Armour Soft is among the most reliable strings in the range.