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
String Project Keen was created to be a thin but equally resistant monofilament tennis string, available in gauges 1.13 mm, 1.18 mm, and 1.22 mm.
Its compound is a concentrate of research and technology, made of different materials that make Keen incredibly solid and responsive.
String Project Keen is a concentrate of technology. Its composition, the result of a meticulous selection of materials, gives the string remarkable resistance despite its thin gauge.
This feature, combined with its high responsiveness, results in an excellent ability to generate spin (9/10) and power (8/10) during play, while maintaining a natural and precise connection with the ball.
Keen stands out for its ability to provide a direct and communicative feeling with the ball. Despite its solid core, it offers a level of control (7.5/10) that allows safe game management.
Its capacity to generate effective spin and controllable power makes it an ideal choice for players seeking a high-performing string without sacrificing sensitivity.
Despite its thin profile, Keen maintains an excellent level of comfort (8.5/10), ensuring effective protection for the arm. This characteristic makes it suitable also for players who prefer thinner strings for greater sensitivity but do not want to give up comfort during long playing sessions.
The availability in three different gauges (1.13 mm, 1.18 mm, 1.22 mm) allows players to choose the version best suited to their playing style and preferences in terms of sensitivity, spin, and durability.
Circular
1.13 (18) | 1.18 (17) | 1.22 (16L)
228 g/mm
18 / 23 Kg
Parameters detected in lab through tests performed by Pro-t-one property of engineer G. Medri.
Download the PDFs of the laboratory tests:
This technology allows molecules' chains to twitch several times resulting a loss of minimal tension and, above all, keeping a higher feature's steadiness.
"Heating treatments" remove internal stress and align string's potential irregularities. Moreover, they make strings more flexible and elastic.
The string is perfected with a wax layer. This treatment extends the duration substantially reducing the wear and making stringing easier.
String's Friction's decrease offers: diminished strings' motion, greater potential spin due to greater snap back and a lasting duration.
about 17 stringings
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choose the calibre:
6 stringings
3 stringings
1 stringing
Blogs
ubitennis.com
The string is immediately recognizable for its qualities referring to the response to the contact with the ball during impacts. It only takes few minutes to figure its positive aspects out : impacts’ softness along with the sensation of mastering the ball. On a control-oriented frame like Wilson Blade, the string performances much better than other models.