Synthetic pig tails are made from man-made fibers, such as nylon or polyester. These fibers are designed to mimic the look and feel of human hair, but are often less expensive and more durable than human hair pig tails. Understanding the materials used in high-quality fiber pigtails helps you determine whether they meet industry requirements and are suitable for demanding applications such as data centers, FTTH systems, and enterprise networks. Bedouin woman with braided pigtails, between 1898 and 1914. The most common fabric types include cotton, linen, silk, wool, polyester, nylon, denim, chiffon, velvet, and rayon.