Nike Tiempo Legend 8 Academy MG Multi-Ground Soccer Cleat LEGENDARY TOUCH. VERSATILE TRACTION. The Nike Tiempo Legend 8 Academy MG takes the legendary touch of calfskin leather and adds a versatile multi-ground plate for traction on natural- and artificial-grass surfaces. Leather Touch The soft calfskin leather is left unstitched with a molded diamond texture for ball control. More Details For use on short-grass or artificial surfaces