Lay the groundwork for your workout. PUMA PWRFRAME TR 2 Running shoes  features a new upper and is a high-performance training shoe still highlighted by bold PWRFRAME technology. It"s a 3D support system that keeps you steady through every interval. This high intensity trainer is perfect for a wide range of routines and movements. The PWRFrame technology is engineered specifically for forefoot support during explosive movements. Its construction is a continuous loop connecting stabilizing components to maximize functionality. This version uses our brand new training sign offs in FS and new icon system on medial side.