Green Keiki (child size) Mermaid Monofin Green SwimFin comes in one size

SwimFin comes in one size only but is adjustable to fit children to adults

Sun Tail Mermaid is an American company that makes the best mermaid tails for swimming - how fun is that

With a spectrum of color

Pair your leggings with a matching Aurora Borealis Bikini

Our monofin is available in 10 colors and in 2 sizes

Green Keiki (child size) Mermaid Monofin Green SwimFin comes in one sizeDid 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