Effortless Movement Every Time You Swim
Discover more underwater and enjoy every swim session easily. Threo fins gently support your legs and keep your feet relaxed. Every kick feels natural and helps you glide without strain. Dive longer and explore further with comfort on every trip.
Custom Fit
Easily adjust straps for any foot shape quickly and securely. Quick-release buckles save time, so you never struggle getting ready.


Lightweight Comfort
Flexible, soft material prevents sore spots and rubbing on skin. Breathable mesh design keeps feet cool and happy throughout use.
Travel Ready
Short, sturdy blades can be easily packed for trips anywhere. Mesh bag and inserts protect your fins and keep everything neat.

Size Guide

- TO MEASURE YOURSELF:
- 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 | ||||
| S-M | 5.5-8.5 | 4-7 | 37-41 | 23-25.5 | 9.06-10.04 |
| L-XL | 9-13 | 8-12 | 42-47 | 26.5-29.8 | 10.43-11.73 |






















Mark T.
These fins made my weekend dives so much easier. Legs don’t tire as fast, the adjustable straps hug wide feet perfectly without pinching.
Daniel R.
I use these for lap swimming twice a week. The short blades give great control, and the mesh bag keeps my wet gear from messing up the car.
Olivia M.
Got these for my husband’s dive trip. He loved how the quick-release buckles made gearing up simple, and the light design let him swim longer without soreness.
Laura S.
I bought these flippers for casual snorkeling on vacation. They pack easily, feel soft on my ankles, and each kick moves me smoothly through the water.
Megan H.
I was worried about blisters, but the soft material surprised me. No hot spots, even after an hour in the lake, and I move through the water with little effort.
Peter W.
Took the fins on a liveaboard dive holiday. Light on my feet, strong enough for mild currents, and the quick-release clips made getting off the boat fast and easy.
Anthony C.
Comfortable straps, solid push in the water, no rubbing.
Isabella K.
The flippers feel sturdy yet gentle on my skin. I’m able to float along the surface watching fish without constantly adjusting them or worrying about durability.
Kevin D.
Good comfort, easy to tighten, and they glide well.
Brian F.
Bought these for my teenage son’s swim training. He says the flippers feel natural, don’t chafe his heels, and the mesh design keeps his feet cooler during long sets.