Red Keiki (child size) Mermaid Monofin hero Nunui means "big" in Hawaiian

Nunui means "big" in Hawaiian

which is why we send you the perfect size fin with the tail size ordered

Whether you are shopping for yourself or for a mermaid in your life

Siren Green is our realistic scale tail design in a vibrant green and aqua colorway

This bikini set matches our Ariel's mermaid magic mermaid tail with beautiful 3D scales

Red Keiki (child size) Mermaid Monofin hero Nunui means "big" in HawaiianDid you know? Keiki means "child" in Hawaiian. It's pronounced kee kee. :) The Keiki monofins are for use with our M, L, and XL mermaid tail sizes. Our patented mermaid monofin (swim flipper) is the best monofin available (US Patents 9561401 and 9925416). Not only does it help you swim like a real mermaid, it keeps feet from sliding around, is so comfortable to wear, and won't break. Unlike other monofins, our swim fins do not require any babying. You