Kick into sixth gear with ULTRA 6 CARBON. Featuring an updated, engineered mesh upper, it’s a football boot that feels and plays like a finely tuned machine at your feet. The SPEEDSYSTEM CARBON outsole is made of carbon fibre, which makes it 32% springier than the non-carbon version. PUMA FastTrax stud design is precision-engineered to take you from kick-off to back-of-the-net faster than you can say: lights out. On the pitch, where every second counts, you can count on ULTRA.. Features & Benefits. The upper of the shoes is made with at least 30% recycled materials.. ACCELERATION: PUMA’s SPEEDSYSTEM CARBON outsole combines springy carbon-fibre material for rapid propulsion with an innovative stud placement and orientation for faster acceleration. TRACTION: FastTrax stud design uses insights from academic research and traction studies to provide more traction while accelerating, cutting and breaking. STABILITY: PWRTAPE SQD support frame stabilizes the foot inside of the boot without hindering agility and freedom of movement. Details. Regular to narrow fit. Fastener: Laces. Heel type: Flat. Toe type: Rounded. Ultra-lightweight removable sockliner. OrthoLite® heel cushioning for a secure lockdown. GripControl Pro skin for decisive command over the ball. FG: Suitable for use on firm natural surfaces