Mantis Tri Spin


Mantis Tri Spin

In the world of tennis Mantis is a brand known mainly for the production of frames. Not everyone knows that Mantis also produces tennis strings of good quality and workmanship.

Today we are going to discover a string that has pleasantly surprised me, the Mantis Tri Spin. We are talking about a triangular section monofilament (hence the reference “Tri” in the name of the model) in co-polyester.

The string is glossy black and is sold in two sizes, 1.25 and 1.30 mm.

The average price is about 9 euro for the 12-metre reel and 105 euro for the 200-metre reel.

On court – The pros

The triangular section and the name of the string make us immediately understand that we have mounted a string that has its strong point in the attitude to the generation of spin. The triangular shape of the Tri Spin increases the grip on the ball by increasing without too much effort the rotations in the strokes. In addition to “biting” the ball very well, the triangular section of the string facilitates the snapback of the verticals that flow very naturally on the horizontal, further increasing the spin.

Access to the rotations is therefore assured, as is the sense of control returned by this string. Thanks to the ball pocketing of the Tri Spin, it is possible to generate “heavy” and deep shots, always having the perception of maximum control of the rallies.

The depth of the strokes is facilitated by the good level of power returned by the Tri Spin. However, we are talking about power that is not immediate and that to be triggered requires expert arms and decisive movements.

Excellent tension holding that attests the life cycle of the string at about 12 hours of play. Considering the competitive segment to which belongs the Tri Spin, 12 hours of play is an excellent result that places the string of Mantis house in the first positions of a hypothetical ranking based on tension holding.

The feeling of comfort is also above the average of the segment. Let’s be clear, it’s not “absolute” comfort. The Tri Spin is in fact a fairly rigid and not very elastic string that has been designed, as mentioned above, to meet the needs of a competitive audience.

On court – The cons

The Tri Spin is not a string with an immediate feeling and its characteristics, especially the returned power, must be activated by strong movements and expert arms. The ball then “walks” if the tennis player knows how to impact it in a certain way. We’re talking about a not particularly reactive monofilament where the ball comes out of the stringbed progressively and not particularly explosive.

In the stringing phase, the installation of the last horizontal strings is slightly problematic. In fact, the string tends to twist on itself, complicating in fact the life of the stringer.

Who it is indicated for

The Mantis string is designed for a competitive audience, able to trigger it properly and take full advantage of its features. Especially recommended for tennis players with a modern game made up of powerful and decisive rotations and strokes. Excellent solution for tournament players looking for a high-performance and durable string.

It adapts very well to profiled frames with generous head size and “open” string pattern (in short, the classic 100 string plate with 16×19 pattern) able to amplify the already natural attitudes of spin and power but without losing control of the shots.

Testing setups

The tests were performed by stringing the Mantis Tri Spin on:

  • Donnay Formula 100 Hexacore (gauge 1.25 mm pulled to 22 kg)
  • Babolat Pure Aero 2019 (gauge 1.30 mm pulled to 22 kg)
  • Wilson Clash (gauge 1.25 pulled to 21 kg)
  • Wilson Blade 98 16×19 Amplifeel (gauge 1.25 pulled to 20 kg)


The Mantis Tri Spin is a monofilament with strong qualities of spin and control, designed primarily for a modern competitive audience.

It adapts perfectly to the modern game, powerful and rich of rotations, always returning to the player a good feeling of control.

For instrumental measurements and further information I refer you to the page of the test of Stringpedia, portal totally dedicated to the world of tennis strings!

We thank HMA Sport (in the person of Marco Chivilò) for the concession of the strings that we used in our tests.