Tornado is a high-end string that is highly popular and highly rated on stringforum.net, tennis warehouse forums, etc
Its made in a heptagonal shape and is axially twisted in a second heating process. This new process adds to its resilience as compared to other twisted strings.
Get more bite and spin. High powered polyester.
Great amount of liveliness with strong ‘pop’.
For more info check out my review here.
Type : Co-Polyester
Structure : Mono-filaments
Shape : Twisted Heptagonal
Colour : Anthracite
Gauges : 1.23mm , 1.17mm