This ultimate guide explores the critical fabric and thread choices for custom embroidered polo shirts, emphasizing technical knowledge, supply chain insights, and product development expertise. It covers the best fabrics like piqué cotton and cotton-poly blends, compares rayon and polyester embroidery threads, and highlights manufacturing and quality control processes. The guide concludes with practical design tips and a FAQ section to help businesses create durable, professional embroidered polos that enhance brand identity.