The MBT Denim Shoes features a perforated EVA insole provides added cushioning with antibacterial treatment to reduce odor. MBT Denim Shoes sale also has a combo synthetic leather and poly mesh upper for both breathable and durable wear.MBT Denim Shoes A padded tongue and collar offers added comfort for immediate wear.Natural rolling movement of the foot for even weight distribution can be found with the TPU and glass fiber shank which adds firmness to the sole construction.MBT Denim Shoes feature a PU midsole with pivot that is the balancing section underneath the metatarsus which requires an active rolling movement with every step.MBT Denim Shoes durable rubber outsole offers lightweight support with good traction.