The MBT M.Walk sky features a perforated EVA insole provides added cushioning with antibacterial treatment to reduce odor. It also has a combo synthetic leather and poly mesh upper for both breathable and durable wear. 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. They feature a PU midsole with pivot that is the balancing section underneath the metatarsus which requires an active rolling movement with every step. A durable rubber outsole offers lightweight support with good traction.