Designed for ultramarathon runners and trail runners who want to beat New records: the prodigy racing shoes are made with Intersuola XFlow Speed ​​™, which improves rebound and absorbs the bumps by increasing your power at every step. The innovative Power Wire Technology with Wrapping System improves fit, stability and power transfer to give you the necessary push on Long distances. In addition, the knit collar envelops and supports The ankle avoiding that Sassolini will enter. To give you more security and stability on difficult crossbars, we have added protection In rubber in the metatarsal area: these lateral inserts they protect the mesopiede, so you can conquer even more land accidentally worried. If you are looking for a precise shoe e reactive for competitions and training, the prodigy is what it does for tea.