Swim Further With Less Effort
Every splash brings more power without extra strain. The Threo fins feature soft materials that keep feet happy all day. Adjustable straps make putting them on quick and simple.
Effortless Movement
Move quickly using less energy in every kick. Flexible blades help you glide through water with ease.


All-Day Comfort
Soft rubber pockets gently support every foot shape. No more sore toes or rubbing after swimming sessions.
Travel Friendly
Lightweight fins fit easily inside any luggage or bag. Perfect for holidays, lessons, or quick trips to the pool.

Size Guide

- TO MEASURE YOUR FEET FOR FINS:
- 1. Stand in your bare feet with your heel against the wall.
- 2. Place a ruler on the floor parallel to your foot with the end of the ruler against the wall.
- 3. Find the length from the wall to the end of your longest toe.
| SIZE | US | UK | EU | FOOT LENGTH | |
|---|---|---|---|---|---|
| cm | inch | ||||
| XS | 1-4.5 | 13-3.5 | 32-36 | 19.7-22.9 | 7.76-9.02 |
| S-M | 5.5-8.5 | 4-7 | 37-41 | 23.1-25.6 | 9.09-10.08 |
| L-XL | 9-13 | 8-12 | 42-47 | 26.5-29.8 | 10.43-11.73 |

























Isla Q.
Very useful at the pool, love the color.
Oscar N.
These are a must for swim practice. They fit me just right and didn’t rub anywhere. My coach noticed how much faster I was.
Jack A.
Simple to use, fits perfectly every time.
Ruby T.
I wore these every day for a week on vacation and they still look brand new. Definitely impressed by the durability.
Leo C.
Lightweight, great for holidays by the sea.
Ryan Z.
Sturdy fins, helped me swim longer.
Max G.
Easy to pack, really comfy in the pool.
Emily E.
Fun swimming tool, made kicking easier.
Lily P.
Swims faster, feels soft on my feet.