The BROOKS MACH 12 is a light-weight trainer that is ideal for every cross run....... Strongly curved lasts provide this shoe with maximum dynamics and flexibility....... The MACH 12 has a compact fit....... Instead of the previous 6 spikes, the new MACH 12 now only has 5....... •Ideal cross shoe ...... •Strongly curved last ensures top dynamics ...... •Compact fit......