This rugged sandal is designed for real hardcore trails. Barefoot Ted has put the Oso through rigorous testing on many trails including the Leadville Trail 100, where they performed exceptionally well.
The Luna Oso (Bear en Español) is a durable, premium trail sandal with a tough, rugged sole and protective midsole, topped by non-slip MGT footbed. An aggressive tread pattern makes the Oso 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.
The Oso uses performance Laces and Tech Strap which were developed when this model was introduced in 2013. 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 takes the edge off all those sharp rocks that otherwise can bruise and tenderize the bottom of your feet. The sole of this sandal is a 10mm Vibram neoprene rubber (11-12mm when combined with a footbed) that is lightweight, durable, and has an 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 comes with our secure and comfortable ATS (All Terrain Strapping) laces. The ATS 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 elasticised heel strap, making the sandals easy to slip on and off. The 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. To keep the buckle from slipping while you're wearing them, a strip of MGT (Monkey Grip Technology) has been added to the buckle area.
All sandals with the MGT footbed and ATS laces will be made with vegan elasticised laces in the heel strap, making them entirely vegan!
**Note: The ATS laces are not interchangeable with other laces at this time.**
NEW MODELS now include the tech 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|