The newest, most interesting innovation of the last years! Minimum tension loss (no string moving).
High durability and high dynamic. Excellent ball control.

Ideal for advanced players looking for an explosive and snappy string with a crisp feel.

Hexagonal shape and strong snap-back effect for great spin potential.

Special coating for reduced string movement.

Ideal for Club and Tour-Players with a powerful groundstroke looking for a very high level of control, durability and tension maintenance.

Made from same material like highly rated MSV Focus Hex ® but with round shape 25% less tension loss in comparison to well-known strings of competitive brands (based on data of TW University; Oct. 2017)

Ideal for players looking for a maximum of spin potential and power.

Heptagonal, twisted co-poly string for highest level of spin potential.

#1 string in power and tension stability during play (Playtest of spin strings 2014 by German tennisMAGAZIN). #2 string in spin potential. Overall rating: GOOD.

Ideal for players using a stiff racquet frame and/or looking for a very comfortable and arm-friendly string with enhanced spin potential.

Softest among all MSV-Co-Polyester strings. 38 % more elastic vs. MSV Focus Hex®. High-performance co-polyester.

GAMMA iO offers exceptional power, access to spin and pinpoint control. Its unique co-poly material takes ball pocketing to a new level, providing ideal levels of response and comfort. GAMMA iO is best suited for players with penetrating and punishing ground strokes from both sides.

Ideal for players using a stiff racquet frame and/or looking for a very comfortable and arm-friendly string with enhanced spin potential.

Softest among all MSV-Co-Polyester strings. 38 % more elastic vs. MSV Focus Hex®. High-performance co-polyester.

The newest, most interesting innovation of the last years! Minimum tension loss (no string moving).
High durability and high dynamic. Excellent ball control.

GAMMA iO offers exceptional power, access to spin and pinpoint control. Its unique co-poly material takes ball pocketing to a new level, providing ideal levels of response and comfort. GAMMA iO is best suited for players with penetrating and punishing ground strokes from both sides.

Ideal for players looking for a very solid and precise co-poly string.

Tested and recommended by independent tennis coaches. Overall rating: 9 points (10-point scale).

FEATURES An arm-friendly multifilament string with firmer feel which provides superior resiliency and excellent power with added control and improved durability.

PLAYER PROFILE For players looking for a firmer feel multifilament string with excellent power and added control.

Ideal for players looking for a powerful and armfriendly string with enhanced spin potential.

25% more elastic vs. MSV Focus Hex®.

Hexagonal shape and strong snap-back effect for great spin potential.

Low string movement.

Ideal for players looking for a powerful and armfriendly string with enhanced spin potential.

25% more elastic vs. MSV Focus Hex®.

Hexagonal shape and strong snap-back effect for great spin potential.

Low string movement.

Introducing Dyreex Black Edge : a comfortable co-polyester with massive spin potential and surgical targeting on full swings. With its grippy five sided profile, the Black Edge puts a tight grip on the ball, making it easier for the strings to grab and load the ball with spin. Designed  with softening agents like polyethylene additives, this string is able to provide much more comfort and power than a standard polyester.