The WaterWay Mermaid Monofin boasts a durable fiberglass blade and soft edges for safe and enjoyable swimming. Our engineers have channeled their expertise to create a fun and efficient monofin, perfect for the growing trend in the mermaid industry. With a blade width of 70cm/27,6 inch, our mermaid monofin is considered the most efficient in the world, allowing for fast and smooth gliding through the water.