Mermaid Monofins


The most efficient mermaid monofins worldwide – Mermaid Kat Triton and Mermaid Kat Hydra Monofin.


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Professional mermaid monofins.

We are very happy and proud to manufacture our own range of professional mermaid monofins. The Mermaid Kat Triton and Mermaid Kat Hydra are monofins designed by real water professionals. These mermaid fins are used and endorsed by freedivers worldwide.

Our Mermaid Kat Triton comes in woman’s shoe size UK 2-5/ US 4-7/ EU 34-38. The Mermaid Kat Hydra Monofin comes in woman`s shoe sizes UK 6-9/ US 8-11/ EU 39-43. Because both fins have adjustable heel straps you can easily use them if you are up to two number below or above the recommended shoe size.

These mermaid mono fins are efficient and powerful. They are perfect to practice your mermaid movement and to swimm underwater using the dolphin kick style. Enjoy the underwater world while swimming like a real sea mammal.

The Mermaid Kat Triton and Mermaid Kat Hydra consist of two separate foot pockets. The space between them keeps your ankles apart from each other while swimming. The two adjustable heel straps secure a tight fit. 


Our mermaid mono fins are great fins for beginners and advanced freedivers and mermaids. 

The Mermaid Kat Triton fits our tail skins in size 1 and size 2. The Mermaid Kat Hydra fits our tail skins in size 3 and size 4.

Please note: Monofins are NO BUOYANCY AIDS! Monofins are suitable FOR SWIMMERS ONLY. The use of monofins in the water may not be used without a guardian of a minor and without supervision.


Weight 2.9 kg
Dimensions 72 × 62 × 8 cm