Hexagonal cross-section for enhanced spin and power
Polyester mono-filament construction for durability and consistent feel
Available in multiple gauges (15mm, 17mm, 18mm) for tailored play
Bulk 200m reel ideal for frequent restringing and cost savings
Pro player-designed for professional-level performance
Summarized by Shop
Diadem Pro X is the most powerful and firm option for string in the Diadem line. Designed with the help of current pro tennis players, this poly string is designed to provide a stiffer option than the Flash string, with a hexagon cross section. The firmness results in an explosive response off the string bed with adequate spin production
Length
200 m (660 ft) reel
String Material
Polyester (Polyamide)
String Design
Mono-filament
Gauge Options
15mm, 17mm, 18mm
Shape
Hexagonal
Colors
Silver, Blue, Orange
Summarized by Shop
4.7
28 ratings
5
4
3
2
1
Pro X is a great string for the Axis 98. It pairs well as a hybrid with Flash.
D
Darren · June 21, 2026
This last longer than most strings which lessens the annoyance of switching racquets mid match