The guys at D2 are the some of the greatest minds in the bicycle industry when it comes to foot/pedal/pedal stroke interface. I have exclusive territory for insole-design, with all the D2 tooling to get the job done right! These are great for anyone who wants to optimize foot/shoe energy distribution, not to mention most deformities, size imbalance, and extremely wide or narrow feet. And they guarantee your satisfaction 100%!!!