LUNA Sandals OSO FLACO Winged Edition | Minimalist Trail Running and Hiking Sandals - Lightweight 7.2 oz Comfortable Barefoot Sandals for Men and Women | Adjustable Fit

Luna Sandals are more rugged variants of the huarache. They are very lightweight and comfortable once broken in, but they can have a very annoying learning curve and break-in period. I'm giving the sandals five stars because they are very well built, but it's not uncommon at all for it to take over a week to find a strap configuration that works for you. There are two tricks to getting these sandals to fit properly. First, most important, is the size. You want very little material around your feet. These are different from most other sandals. The less material, the better. This means you will almost always want to size down, which Luna recommends. I'm a size 10 in shoes, I actually had to get these in size 8 to get a proper fit. Even a size 9 was too large for my feet. The second trick, and it's really counterintuitive, is to not over-tighten the straps. The key is "snug, not tight." If you've worn Birkenstocks, the rule is you want to be able to fit a finger between your feet and the straps. Same thing here. You want the straps to be snug but not tight. This lets your foot move properly. If they are too tight, the straps will actually force your foot into a fixed position, usually causing the sandal to turn inward or outward. (Not to mention it can cause foot pain). Adjustment will take a while. Eventually you'll find something that works. (I also like having my foot a little more forward in the sandal as opposed to centered or pushed back, but this totally depends on you). The quality is very good. The Vibram sole is very durable and a good choice for hiking and trails. Probably not the best option for really rugged things like rock climbing, but these are great for most typical day hikes. They are also easy to clean and dry very quickly, which can be a big deal if you are going to be trekking through rivers or bodies of water.

Update Edit 7.19.23: That was the quickest size exchange I've ever experienced (helps they're in the same state as me). Two days only. Have the correct size now and quite honestly they're perfect. Light. Grippy. Comfortable. Fantastic ground-feel. Easy to adjust. Easy on/off. So light. So grippy. Just a fantastic sandal. 5-stars. (Sorry in advance for my ugly feet in the photos.) Original Review 7.17.23: I ordered the incorrect size and wound up with a sandal that was 1.5 to 2 sizes too small for my foot. Neverless they still (because they're sandals) just barely fit me with the tiniest over-hang of large toe at front, and heel right to the very edge at the back (I have very short toes). No, I didn't keep them, but am posting a review simply to state how fantastic they felt, even this small, right out of the box. Perfect stack height for grip AND flexibility. My main sandal for several years now are Bedrock sandals (which I adore). These are very similar but this particular model gives me the grip of those, plus the smaller stack height of even more minimal sandals. I bought a pair of these Oso Flaco Winged along with a pair of their model "Origen Flaco" (correctly sized) directly from Luna at the same time to try out. I am keeping the Origens (they have tired tread and leather upper) but like these lighter, grippier Oso Flacos so much I may reorder in the correct size and have both. Just two fantastic sandals right out of the gate. My wife has a couple pairs for two or three years now and loves them. I understand why. (And none of this is to say these are better than Bedrocks... I don't think they are, but they are every bit as good. I will say that I think Bedrocks likely win in the durability catagory by a bit, just judging from construction and design... but the margin is small. ) Thanks Luna. From my feet on up, thanks!

These sandals were perfect for a beach vacation, but I highly recommend that you CHECK THE SIZING GUIDES on Luna Sandals website before purchasing. Based on the sizing guides, I bought maybe 3-4 sizes below my usual size. These sandals were a last minute purchase before I headed to the rocky beaches of the southern France. I wanted some minimalist sandals that could double as water shoes, and these were perfect for that. The tread was very grippy even on wet surfaces so I didn’t slip at all on the sea rocks. The insole (?) wasn’t slippery either, and the straps kept my feet snugly in place. I don’t usually like sandals with straps that go between my toes, but these were plenty comfy from first wear. The only negative I experienced is that, in comparison to water shoes, these sandals did allow some little rocks to slip in and get stuck below my foot and the insole, but it was easy enough to wash those out of the way. After wearing them in the water, I could still comfortably wear them for the 1-2 mile walk back home. I didn’t try wearing them for long-distance walks or hikes tho. Overall, would highly recommend.

TL;DR: Great sandals, ergonomic design. Straps broke after 1 yr but got free repairs, took only 3 business days to get brand new straps. These sandals fit perfectly. You can use their website's free foot sizing template printouts to get the perfect size. Hands down they are the best sandals I have ever worn in my life. The best thing about them is that they have a single strap that is very secure, yet very easy to get in/out of. Once you put these on the soles sort of hug your feet very gently no matter how hard you shake your feet (because of running or any other activity). My sandals' side stitching came unraveled after about a year, outside of the warranty period. Thankfully when I emailed them about this, they immediately sent me a prepaid 2-day shipping label to send them back for repairs -- all free of charge! I mailed them back on Saturday but got them back repaired on Wednesday --- amazing! Not only that, they seem to have completely replaced their previous stitched area in the side straps with a new riveted mechanism to fix the problem forever (see attached pictures). Bravo! I usually don't write reviews but felt compelled to write one after they went out of their way to fix my out-of-warranty sandals. And so here I am going out of my way to write a review for you guys. You guys rock!

Love them! Great quality and comfortable. Adjustments take getting used to but does not loosen up. Have not ran with them but light jog feels great. Over priced but happy I bought them.

I’ve been wearing the LUNA Sandals OSO FLACO Winged Edition daily, and they’ve quickly become my go-to footwear. I even ran a half marathon in them, and my feet felt phenomenal the entire time—light, supported, and fatigue-free. The Winged lacing system provides a snug, secure fit without any discomfort, and the sandals mold to your feet quickly. They’re lightweight yet durable, with excellent grip on a variety of surfaces. What I love most is the freedom they give—offering a barefoot feel without sacrificing protection or stability. These sandals aren’t just for casual use—they’re performance-ready. Comfortable, versatile, and built to last, the OSO FLACO Winged Edition is a must-have for anyone who enjoys minimalist shoes.

Cannot recommend highly enough. These shoes last forever. They stay glued to your feet once you adjust the straps correctly. You can run, walk, hike, swim, or whatever in these sandals. I have hiked in the Swiss Alps and throughout Europe in these in some very challenging terrain. I never felt like I needed a "shoe" instead of a sandal. Even in the rain, my feet did not slip around in the sandal. I keep expecting them to wear out or break, but they never do. The more you wear them, the more they break-in and the more comfortable they become. Perfect sandal/shoe.

Very awesome! Very comfortable and the next best thing to being barefoot and having the bottoms of your feet protected…. Great walking ability stylish and value for the money