THE ULTIMATE SHOE FOR MIDDLE-DISTANCE RUNNERS - THE ADIDAS ADIZERO MD TRACK & FIELD SPIKE SHOE. These adidas Adizero MD Track & Field Spike Shoes will help you be the first to reach the finish line. The decoupled heel absorbs shock and the energy-returning midsole creates a springboard effect to help drive forward momentum. Your feet will keep cool thanks to the mesh upper, and the asymmetrical plate design offers stability around curves. FEATURESEnergy-returning midsoleDecoupled heelMesh upperAsymmetrical plate designTECH SPECSMidsole drop: 5.5 mm (heel: 14.5 mm / forefoot: 9 mm)Textile lining; Synthetic outsole with five-spike forefoot