Mega NRGY Knit is the perfect combination of style and performance. Clean upper with a youthful, alternative look. Knitted upper material ensures a premium on-foot look. PUMA NRGY Foam for maximum energy return, and enhanced comfort with a SOFTFOAM sockliner. The eTPU pellets are bursting with energy to give you a pop with every stride. Full Rubber outsole for maximum traction and durability.