- Swimmable fabric: Swimmable fabrics are designed to resist water and provide a comfortable fit for swimming. They are often made from nylon or polyester, and may be coated with a water-resistant finish.
- Silicone: Silicone mermaid tails are durable and realistic-looking, but they are also more expensive and heavier than swimmable fabric tails.
- Monofins: Monofins are a type of swim fin that is designed for use with a mermaid tail. They are typically made from plastic or fiberglass, and are attached to the feet with straps.
- Other materials: Mermaid tails can also be made from a variety of other materials, such as spandex, neoprene, and even recycled materials.