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    243 reviews

    Retro Oso Flaco

    Size Guide
    LUNA Sizing
    Once you've determined your size, you can double check it by clicking the corresponding Printer Iconand printing out a template.
    When printing our copyrighted PDF templates, make sure the "Scale" in the Print Window is set to 100% or the template won't be accurate.
    If using the Chrome browser, make sure the "Fit to page" checkbox is UNCHECKED.
    After you print out the template, also double check the scale by comparing a ruler to the ruler that prints on the template.
    Toes should be close to edge, but not hang over. Want our opinion? Send a photo of your foot on the template support@lunasandals.com
    The biggest issue people have is not having the template accurately printed, so double check twice. ;-)

    ADULT SIZES

    (Centimeters) Your Foot Mens US Womens US EU UK actual width in centimeters Print
    21.9 - 22.2 4 6 36 3 9.2 Printer-icon
    22.3 - 22.6 4.5 6.5 36.5 3.5 9.4 Printer-icon
    22.7 - 23 5 7 37 4 9.6 Printer-icon
    23.1 - 23.5 5.5 7.5 37.5 4.5 9.8 Printer-icon
    23.6 - 23.9 6 8 38 5 10 Printer-icon
    24.0 - 24.3 6.5 8.5 38.5 5.5 10.2 Printer-icon
    24.4 - 24.7 7 9 39 6 10.4 Printer-icon
    24.8 - 25.2 7.5 9.5 39.5 6.5 10.55 Printer-icon
    25.3 - 25.6 8 10 40 7 10.7 Printer-icon
    25.7 - 26.0 8.5 10.5 40.5 7.5 10.85 Printer-icon
    26.1 - 26.4 9 11 41 8 11 Printer-icon
    26.5 - 26.8 9.5 11.5 41.5 8.5 11.15 Printer-icon
    26.9 - 27.3 10 12 42 9 11.35 Printer-icon
    27.4 - 27.7 10.5 12.5 42.5 9.5 11.5 Printer-icon
    27.8 - 28.1 11 13 43 10 11.7 Printer-icon
    28.2 - 28.5 11.5 13.5 43.5 10.5 11.85 Printer-icon
    28.6 - 29.0 12 14 44 11 12 Printer-icon
    29.1 - 29.4 12.5 14.5 44.5 11.5 12.2 Printer-icon
    29.5 - 30.1 13 15 45 12 12.4 Printer-icon

     

    LUNAcito Sizes

    Length LUNAcito Sizes Print
    19cm K12
     >>View Template
    Printer-icon
    19.8cm
    K13
     >>View Template
    Printer-icon
    20.6cm
    K1
     >>View Template
    Printer-icon
    21.5cm
    K2
     >>View Template
    Printer-icon
    22.4cm
    K3
     >>View Template
    Printer-icon
    LUNA Sizing
    Once you've determined your size, you can double check it by clicking the corresponding Printer Iconand printing out a template.
    When printing our copyrighted PDF templates, make sure the "Scale" in the Print Window is set to 100% or the template won't be accurate.
    If using the Chrome browser, make sure the "Fit to page" checkbox is UNCHECKED.
    After you print out the template, also double check the scale by comparing a ruler to the ruler that prints on the template.
    Toes should be close to edge, but not hang over. Want our opinion? Send a photo of your foot on the template support@lunasandals.com
    The biggest issue people have is not having the template accurately printed, so double check twice. ;-)

    ADULT SIZES

    (Centimeters) Your Foot Mens US Womens US EU UK actual width in centimeters Print
    21.9 - 22.2 4 6 36 3 9.2 Printer-icon
    22.3 - 22.6 4.5 6.5 36.5 3.5 9.4 Printer-icon
    22.7 - 23 5 7 37 4 9.6 Printer-icon
    23.1 - 23.5 5.5 7.5 37.5 4.5 9.8 Printer-icon
    23.6 - 23.9 6 8 38 5 10 Printer-icon
    24.0 - 24.3 6.5 8.5 38.5 5.5 10.2 Printer-icon
    24.4 - 24.7 7 9 39 6 10.4 Printer-icon
    24.8 - 25.2 7.5 9.5 39.5 6.5 10.55 Printer-icon
    25.3 - 25.6 8 10 40 7 10.7 Printer-icon
    25.7 - 26.0 8.5 10.5 40.5 7.5 10.85 Printer-icon
    26.1 - 26.4 9 11 41 8 11 Printer-icon
    26.5 - 26.8 9.5 11.5 41.5 8.5 11.15 Printer-icon
    26.9 - 27.3 10 12 42 9 11.35 Printer-icon
    27.4 - 27.7 10.5 12.5 42.5 9.5 11.5 Printer-icon
    27.8 - 28.1 11 13 43 10 11.7 Printer-icon
    28.2 - 28.5 11.5 13.5 43.5 10.5 11.85 Printer-icon
    28.6 - 29.0 12 14 44 11 12 Printer-icon
    29.1 - 29.4 12.5 14.5 44.5 11.5 12.2 Printer-icon
    29.5 - 30.1 13 15 45 12 12.4 Printer-icon

     

    LUNAcito Sizes

    Length LUNAcito Sizes Print
    19cm K12
     >>View Template
    Printer-icon
    19.8cm
    K13
     >>View Template
    Printer-icon
    20.6cm
    K1
     >>View Template
    Printer-icon
    21.5cm
    K2
     >>View Template
    Printer-icon
    22.4cm
    K3
     >>View Template
    Printer-icon

    Retro Oso Flaco Specs
    Made in Seattle, USA.
    Weight: 7.2 oz (single sandal, men's size 9)
    Thickness: 7MM base + 4.5MM lugs
    Sole Waterproof Non-Marking  Vibram® Megagrip Outsole + Vibram® Midsole
    Laces: Performance Laces 2.0 with Tech Straps *Patented
    Vegan: Yes

    LUNA Sandals - Vibram MegagripLUNA SandalsLUNA Sandals - Seattle Made

    Back by popular demand! The Oso Flaco represents the “bear” essentials for a truly trail worthy sandal. This sandal is for those who want the most aggressive tread pattern for crazy grip with our original lacing system along with the super flexibility, full ground feel and the greatest durability possible. It's back!



    Customer Reviews
    4.6 Based on 243 Reviews
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    Filter Reviews:
      CF
      10/21/2020
      Charles F.
      United States United States
      Best Sandals ever

      This is my 2nd pair of Luna sandals. If I have to put on anything like a shoe to run in, these are what goes on my feet!! LOVE THEM!!

      M
      08/28/2020
      Mark
      United States United States
      Amazing customer support

      First of all this company rocks. I’m a terrible customer, first I ordered a wrong size, returned it for a new size but I accidentally clicked the wrong version of the sandal . I looked at the order and it was my mistake not lunas. So I had to exchange a third time for the right size and sandal. No questions asked, they paid for shipping which they should not have had to cause it was my mistake. Well today I finally got the pair I have been excited for. It’s the 10.5 men’s flaco. I have them on now and am hooked. Can’t wait to wear them in and hike with. I believe I am a customer for life and am thinking I should quit my high paying job to work for Luna. Who needs shoes? Thanks again Luna top notch service and sick sandal!!!!!

      A
      08/26/2020
      Anonymous
      United States United States
      Luna Every Day

      I LOVE LOVE LOVE these, I bought my second pair cause they make my feet happy. They are my go too especially now that I work from home & I dread the day I have to think about putting work shoes back on.

      CQ
      08/17/2020
      Courtney Q.
      United States United States
      Fantastic shoes, fantastic service!

      I purchased my shoes originally in March, in a size 7.5. I didn't get around to wearing them until June, when the weather warmed up. I wore them a few times and found that my toes were falling off the front end. After a little of my own research and reaching out to Luna, I found out I definitely ordered them a bit too large. Their customer service rep worked with me to do an exchange, even though I was out of the standard exchange window. They asked me to send in pics of my shoes to verify their worn status, and then asked that all I do is pay the difference due to the wear on the shoes (I only ended up paying $17 for my exchanged pair). I wish all companies did exchanges that way. I have been wearing my correct-sized Lunas multiple times a week since the exchange and couldn't be happier. They are reasonably fashionable, they work wonderfully on day hikes with the dog, and they are comfortable to boot. Would definitely purchase again!

      AC
      08/12/2020
      Abigail C.
      United States United States
      Retro Oso Flaco

      I love the Retro Osco Flaco. I wear them for daily and for running (city sidewalks). These sandals are very comfortable with minimal soles. It feels close to being barefoot.