Merfin classic by mahina mermaid available in coral pink and aqua marine the mahina merfin is a unique and never seen before mermaid mono-fin. The merfins are original in the sense that they are made with recycled rubber, and are one of the first eco friendly fins. The merfin is soft, flexible and functional and will give you the speed and agility of any fish in the ocean. The merfin is a great pool toy, a wonderful snorkelling fin or swimming device for fitness… not to mention the incredibubble fun of bodysurfing the waves! It is safe to use, with just one flick of the ankle strap the legs are free.