Improve Your Tennis
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magic
Comfort of the multi and performances of a mono.
rocket
Power and spin, no compromise.
armour
An evolution in terms of perception and ball's control.
hexa pro
Conceived to support more complex rotations.
armour soft
Modern and tech, designed to offer high performance.
sirius
For an unbeatable experience and top-level performance.
keen
A concentrate of technology, incredibly strong and responsive.
gold
The innovation of multifilament.
Tennis Strings
Tennis Players
Partners
Sustainability
points
alberi
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Experience next-level play with String Project Sirius, the monofilament tennis string designed to deliver an unbeatable combination of high performance and exceptional feel. Developed with cutting-edge materials and innovative manufacturing processes, Sirius takes your game to new heights.
String Project Sirius is the epitome of versatility. On court, it stands out for its remarkable synergy of spin (9.5/10), power (9/10) and exceptional control (9.5/10). This harmonious blend of features enables players to express their style to the fullest, adapting to different match situations with confidence and precision.
Thanks to its intrinsic “Arm-Friendly” technology, Sirius is designed to provide a high level of comfort (8/10) during every rally. This crucial feature allows you to focus on performance without worrying about arm fatigue, even during the most intense and prolonged playing sessions.
One of Sirius’s standout strengths is its exceptional tension maintenance (8/10). This quality ensures the string retains its optimal playing characteristics over an extended period, delivering consistent performance over time. You can rely on Sirius’s predictable and dependable response, shot after shot.
Indipendentemente dal tuo stile di gioco o dalle tue preferenze in campo, String Project Sirius è una corda in grado di soddisfare le tue esigenze. La sua combinazione unica di potenza controllabile, spin efficace e comfort protettivo la rende una scelta ideale per un’ampia gamma di giocatori, dal competitivo all’amatore esigente.
Choose String Project Sirius for an unparalleled playing experience. This versatile monofilament string offers the perfect balance of power, control, spin, comfort and durability, allowing you to fully express your potential on court.
Packaging
200 m Reel, 6 Sets Pack of 12 m, 3 Sets Pack of 12 m, Single Set of 12 m
Caliber
1.25 mm, 1.30 mm
Model
Sirius
Indication
Power, Control, Spin
Typology
Monofilament
Shaping
Circular
Power
9
Control
9.5
Comfort
8
Spin
Tension
Static Stiffness 15-20 kg
1.10 kg/mm
Static Stiffness 20-25 kg
1.05 kg/mm
Dynamic Stiffness
225 g/mm
Optimal Tension
17 - 23 kg
Free shipping for orders starting from €50. Delivery within 24/48 hours. Free returns within 30 days.
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