Tretorn MICRO X (6 dozen)

The micro cellular technology is protected by a worldwide patent. The International Tennis Federation (ITF) recognized those balls as the pioneer in a category of micro cell balls. Tretorn Micro X tennis ball is neither pressurized nor pressureless. It combines the features of both types, which ensures that the ball will not lose its bounce or performance over time.

3-piece micro cell construction:
    Exclusive Flex-Felt™ for best feel and maximum durability on all court surfaces
    Powered by 700 million micro cells
    Titanuim and polybutadiene core for soft touch and enhanced spin

Flex-Felt: the felt is woven with special Polyester fibres to ensure unique flexibility. The felt increases durability of the ball and protects the soft and playable core. Additionally, the ball gains a softer feel.

Microspheres: The lighter weight core allows a material to be introduced into the ball and still comply with the ITF specification. The sphere is formed with Expancel, a copolymer of Aerylonitrile and Methylmethacrylate. Isopentane gas in a form of droplets is introduced in the polymerisation process. As a result a particle with a liquid gas encapsulated in plastic polymer is created. When heated to the 140 degrees centigrade, the polymer shells soften and the gas expands creating Microspheres of 50 times larger size with very thin walls. As a result, 1.0 gms of Expancel fills the inside of the ball. The spheres are fluid, flexible and strong. Expancel works as a buffer between the half-shells and gives a ball better control and feel on the racket as well as better playability.

Core: the core wall is made from carefully selected synthetic materials, which are of high quality and consistency and meet requirements of Tretorn specification. The core walls have higher polymer content and less filler, which makes the core softer and lighter and maintains all the dynamics of premium balls. The flex-felt reduces the stress on the core and so the Micro X has excellent durability.

The Micro X with its combination of the 3 elements gives a ball significantly better performance than any previous pressureless ball, while reducing the difference between pressureless and pressurised in overall playability.

Package: 18 x 4 ball tubes (total 6 dozen)