Acceleration: Puma’S Speedsystem Outsole Design Combines A High-Performance Fiber Base Material With An External Heel Counter And A Revolutionary Stud System To Maximize Energy Return For Faster Acceleration. Traction: Puma’S Proprietary Fasttrax Studs Are Complemented With More Rounded Studs On Lateral Side For The Most Optimal Traction On Both Firm Ground And Artificial Grass. Stability: Pwrtape Support Frame Stabilizes The Foot Inside Of The Boot To Enable Rapid Changes Of Direction. Lightweight Mesh Upper Material With Gripcontrol Pro Skin For Decisive Command Over The Ball. Regular Fit.