American shoppers replace footwear regularly, which supports the PU Sole (Footwear Polyurethane) Market in the USA. Polyurethane soles are common in work boots, casual shoes, and sneakers. Demand moves at a calm pace rather than in sharp swings. What Is the PU Sole (Footwear Polyurethane) Market? PU Sole (Footwear Polyurethane) material is a polyurethane system used to make midsoles and...