If you're trying to decide between a fabric or plastic shower curtain, there are a few things to consider. Fabric shower curtains are usually made of polyester, nylon or cotton. They're typically more expensive than plastic shower curtains, but they can be more durable and easier to clean. Plastic shower curtains are usually made of PVC or PEVA. They're typically less expensive than fabric shower curtains, but they're not as durable and can be more difficult to clean.