Details The Saucony Ballista MD Spike Women's will help you put an end to the idea that middle distance means mild mannered. The aggressive stance and lightweight performance of the Ballista will have you feeling like a bullet in the starting gun. Faster than the speed of sound, more power than a cap gun, it's 6 ballistic spikes are ready to sync your stride to victory. This shoe is intended for 400m-Mile track distances. Upper Woven Upper Midsole SSL EVA midsole Outsole 6-pin Spike Plate Width Standard (B) Weight 92g / 3.2oz (Women's 8) Saucony Ballista MD Spike Women's