Sergio “Kun” Aguero, the Argentinian footballer who plays for Manchester City FC, has signed a long-term contract with Puma, which takes the place of Nike as its sponsor. He started wearing Puma's v1.11 Speed boot in his team's UEFA Champions League game against SSC Napoli on Sept. 14, and will also be a key figure in marketing campaigns in the years to come. Puma says that the v1.11 Speed boot is one of the lightest it has ever made, and it provides stability, traction and maneuverability for the player.