Hi-Tec Silver Shadow 2 Running Shoes 2 Density EVA Midsole - Helps to prevent overpronation and TPU Heel Stabiliser - Provides stability, support and shock absorption. Breathable Mesh/Suede Upper - Provides great breathability and ventilation. Carbon Rubber Outsole - For durability and extra traction. Removable Moulded EVA Sockliner - Cushions your foot for a more comfortable run.