The MAGIC SPEED™ shoe is made for racing or regular training runs.It offers the versatility you need to move your body and your mind towards a new personal best.Made to propel your foot forward,GUIDESOLE™ technology is combined with a carbon forefoot plate.This creates a smooth rolling sensation as you move through your stride.Traditionally,when you add more foam to a shoe,you add more weight.By stacking the midsole with FLYTEFOAM® Blast cushioning,this material adds a responsive feel to your step while keeping the shoe lightweight.