| Size US |
Measure of the sandal (cm*) |
Measure of your feet (cm*) |
|---|---|---|
| 5Man | 24 | 22,6 - 23,5 |
| 6Man | 25 | 23,6 a 24,5 |
| 7Man | 26 | 24,6 - 25,5 |
| 8Man | 26,5 | 25,6 - 26 |
| 9Man | 27,5 | 26,1 - 27 |
| 10Man | 28,5 | 27,1 - 28 |
| 11Man | 29 | 28,1 - 28,5 |
| 12Man | 30 | 28,6 - 29,5 |
|
13Man |
31 | 29,5 - 30,5 |
*Centimeters.
Luna Sandal sizes are Unisex. There are no different lasts between men and women. Whether you are a man or a woman, choose your size according to the measurements in the table above and the measurement of your foot.
To measure the foot you can follow the indications that we give in the following link.
In the following video you can see how the Luna Sandals adjustment is made:
We're back to the roots! The retro version of Luna Sandals is back!
What can I tell you that you don't already know about Luna Sandals? These barefoot huaraches make you feel free, whether you're skipping through the mountains or taking a stroll at sunset.
So forget about those rubber flip-flops that slip off with every step.
Put on a real huarache and move properly, just as you were designed!
Move across More terrain with Less on your feet.
The Oso Flaco Retro Edition keeps things simple.
They’re the closest thing to running barefoot in the mountains—without tearing up your feet.
A Vibram sole that’s thin but aggressive, paired with a simple yet unbeatable structure.
Everything in these sandals is designed to leave nothing out—and include nothing extra.
If you're the type who chooses the tough line—technical trails, rocky ground, steep slopes—this model is for you.
Its low profile gives you serious ground feel, while the Vibram® Megagrip compound and defined lugs prevent slips on all kinds of terrain.
And best of all: despite the grip, you don’t lose an ounce of freedom.

The fit of the Oso Flaco Retro Edition is firm but hugs your feet
This Retro Edition brings back the traditional Luna Sandals strap system.
The straps wrap your foot and keep the sandal in place.
It’s more customizable: tighter, looser… whatever works best for you and your adventures.
Feel maximum connection with minimum weight
At just 204g (men’s size 9), the Oso Flaco Retro Edition feels like a natural extension of your body.
The footbed uses Monkey Grip Technology, so neither sweat nor rain will compromise your footing.
And like all Luna models, they have zero drop, zero toe spring—and zero desire to go back to conventional shoes.
Do more with less. Go where others don’t dare.
Care and maintenance of the Luna Oso Flaco Retro Edition
Just rinse with water and a bit of mild soap.
Let them air dry, away from direct heat sources.
They’re vegan, durable, and ready for many adventures.
My size in the Luna Sandals Oso Flaco Retro Edition
To find your size, measure your foot and use the link below the size selector.
And if it’s not right the first time, it will be the second.
The exchange system is simple, fast and free if you activate the 1.99€ size insurance (valid in Spain).
For more info about sizing, read this link.
Data sheet
- Stack Height WITHOUT insole
- 11,5 mm
- Drop
- 0 mm
- Weight
- 204 g
- Minimalist Features
- Pura
- Use
- Montaña
- Vegan
- Yes
Specific References
- EAN13
- 819894013924