This flexible allround sandal is designed for all trails and works equally well on road. Barefoot Ted has put the original Oso through rigorous testing on many trails including the Leadville Trail 100, where they performed exceptionally well.
The Luna Oso Flaco (Skinny Bear en Español) is a revelation in trail sandals with a tough, sole and full mouldable, flexible, midsole, topped by non-slip MGT footbed. An all new aggressive tread pattern, Vibram Megagrip, makes the Oso Flaco a great option for off-road running and adverse weather conditions where maintaining your footing is essential. This sandal can handle most advanced trails and wet conditions, whether running or walking, with the maximum groundfeel in the range.
The Oso Flaco uses the NEW Performance Laces 2 and Tech Strap which have been so successful in testing. If you need more strapped-down security for technical trails, mud/obstacle runs, MovNat adventures, wilderness walkabouts, Fuego y Agua Ultra-ing... this strapping system was developed with you in mind.
The Oso Flaco allows the feel of all those sharp rocks that otherwise can bruise and tenderize the bottom of your feet, without compromising the barefoot experience. The sole of this sandal is a 7mm with a 4.5mm Vibram Megagrip outsole which is lightweight, durable, and has an seriously aggressive tread pattern.
Each pair of sandals are cut and assembled by hand for each order.
How does it compare to the other sandal models?
The Oso Flaco comes with our secure and comfortable Performance 2 laces. The Performance 2 laces include our LUNA Plug System, which consists of a soft, tubular nylon between the toes and a flat plug under the outsole for extended wear protection.
The remainder of the laces are made up of a 5/8" climbing-grade tubular nylon with an extra padded heel strap, making the sandals easy to slip on and off. The all new buckle at the top of the foot allows for simple adjustments thanks to the ability to tighten and loosen the buckle and slide the strap up and down the toe strap.
All sandals with the MGT footbed and Performance 2 laces will be made with vegan padding in the heel strap, making them entirely vegan!
**Note: The Performance 2 laces are not interchangeable with other laces at this time.**
ALL NEW MODELS include the tec strap which assists the heel strap in staying firmly in position without offering any support.
We stand by all products we offer at LUNA.
If you are not satisfied with one of our products or if they ever fail you, return them to us for a replacement, (partial or full) refund, store credit or repair.
A reasonable charge will be assessed for damage due to wear and tear or for repair.
For any production defect that you might encounter on your LUNAs, you have the MoonRock Guarantee. For example, your LUNAs should never delaminate on the sole or have its buckle or plug break during their lifetime unless they are purposefully abused.
Even though many LUNAtics put thousands of miles on their LUNAs, it is hard to give a definite lifetime. How a LUNA wears will vary from person to person, model to model depending on the intended use, gait, weight, load, terrain, running form, and climate.
These would void your MoonRock Lifetime Guarantee: Intentional misuse. Returns on products which show normal wear and tear but no defect. Any damage incurred from improper cleaning or self repairs (e.g. cutting or removing tags, cutting the soles of your sandals).
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Mens & Womens
|LUNA Mens US||LUNA Womens US||the actual width of our sandal in centimeters|
|21.9 - 22.2||3||4||6||9.2|
|22.3 - 22.6||3.5||4.5||6.5||9.4|
|22.7 - 23||4||5||7||9.6|
|23.1 - 23.5||4.5||5.5||7.5||9.8|
|23.6 - 23.9||5||6||8||10|
|24.0 - 24.3||5.5||6.5||8.5||10.2|
|24.4 - 24.7||6||7||9||10.4|
|24.8 - 25.2||6.5||7.5||9.5||10.55|
|25.3 - 25.6||7||8||10||10.7|
|25.7 - 26.0||7.5||8.5||10.5||10.85|
|26.1 - 26.4||8||9||11||11|
|26.5 - 26.8||8.5||9.5||11.5||11.15|
|26.9 - 27.3||9||10||12||11.35|
|27.4 - 27.7||9.5||10.5||12.5||11.5|
|27.8 - 28.1||10||11||13||11.7|
|28.2 - 28.5||10.5||11.5||13.5||11.85|
|28.6 - 29.0||11||12||14||12|
|29.1 - 29.4||11.5||12.5||14.5||12.2|
|29.5 - 30.1||12||13||15||12.4|