POLÍMEROS Y DERIVADOS, headquartered in León, Gto., is an industry specializing in materials for the assembly of footwear, with 65 years of experience in both local and international markets. Their products are well-known for their added value in terms of innovation, technology, and performance. The key products include materials for insoles, both cellulosic and non-woven, suitable for various manufacturing systems; toe caps and counterforts designed for different types of footwear; non-woven interlinings for reinforcement, assembly, and upper resistance; and an extensive range of non-woven linings available in various thicknesses and textures. They have five domestic representations in Mexico's main manufacturing areas and, internationally, they have offices and representatives in Colombia, Ecuador, Guatemala, the United States, and the Dominican Republic.