Rope material can be made from a variety of materials, including NYLON, SISAL, BAST, and HEMP. NYLON is a synthetic polymer made from petroleum-based chemicals, and is the most common type of rope material. SISAL is a natural fiber derived from the agave plant, and is often used for making twine and rope. BAST is a natural fiber made from the inner bark of certain trees, and is commonly used for making rope and cordage. HEMP is a natural fiber made from the Cannabis sativa plant, and is often used for making rope and twine.