adidas - a Superstar Power 2 (Black/Metallic Silver/Black) - Men's: The a Superstar Power 2 delivers spring-loaded performance with the a Structure outsole. Synthetic leather upper offers lightweight and durability while an air mesh tongue provides maximum ventilation. PU insole and Internal EVA midsole for cushioning, fit and durable comfort. Non-marking, herringbone pattern rubber outsole delivers optimum traction.