Dexter has taken the bowling shoe to the next level with THE 9. THE stands for Toehold Hyperflex Engineering. This shoe has so many features starting with the unique reinforced toe hold that helps extend the life of the interchangeable soled shoe. The hyperflex channels on the sole of the shoe provide added flexibility and outersole longevity. With these features and everything the SST 8 shoes have to offer there is no lack of technology!