Polyurethane Midsole and Cushioning Technology Oude system sneakers utilize a flexible polyurethane (PU) midsole with a density of 0.45– 0.55 g/cm ³, which provides a compression set resistance listed below 25% after 72 hours of continual loading at 50 ° C. This density variety provides optimal energy return during the stance stage of walking stride– around 55– 60% of input…
