POWERRIDE POWER RIDE The classic item "Power Ride" to strengthen flex. The size was for a 26cm boot. I don't remember if I walked in them once, but I haven't used them much. When I bent them by hand, the flex felt soft, but they provide a good rebound. Please understand that these are items that were purchased and stored at home by an individual. Please purchase with this in mind. If you have any other questions, please write them in the comments section.