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Vibram FiveFingers KSO EVO - Women's Review

This shoe is a truly novel concept that is as close as possible to being barefoot in a closed-toe shoe
Top Pick Award
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Price:  $100 List | $94.99 at Amazon
Compare prices at 2 resellers
Pros:  Lightweight, nimble, extremely minimal, moderate price
Cons:  Permeable to water and dust, some may experience friction
Manufacturer:   Vibram
By Lyra Pierotti ⋅ Review Editor  ⋅  Jun 10, 2020
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76
OVERALL
SCORE


RANKED
#2 of 10
  • Performance - 30% 8
  • Barefoot Accuracy - 25% 9
  • Weight - 15% 9
  • Traction - 15% 7
  • Versatility - 10% 4
  • Durability - 5% 3

Our Verdict

Vibram continues to lead the minimalist shoe market with its novel FiveFingers KSO EVO shoe design. These shoes may look funny to some, intriguing to others, and judging from their growth and the spread of casual models available, even stylish and cool to some. Whatever your reason for wearing them, the benefits to foot strength and running efficiency can be real if you build up gradually and thoughtfully, with careful attention to your movement, muscles, and overall health. This shoe wins our Top Pick for Closest-to-Barefoot because of its high-level performance, natural feel, barefoot accuracy, and impressively light weight.

Compare to Similar Products

Our Analysis and Test Results

If you crave the feeling of running barefoot but still want to protect your feet, the KSO EVO might be your new best friend. By far the lightest shoe in our review, this Top Pick winner is nimble, well designed, and friendly on the wallet.

Performance Comparison


The iconic FiveFingers from Vibram  still leading the minimalist shoe industry.
The iconic FiveFingers from Vibram, still leading the minimalist shoe industry.

Performance


The FiveFingers KSO EVO scored very well in our performance tests. On numerous runs, we assessed the shoes for fit, ground feel, and how well they promote efficient running form. They let us run naturally without trying to control or correct our movements, exactly what we want in a minimalist shoe.


The KSO EVO is one of our favorite running shoes in this review because it let us run uninhibited while still protecting our pads just enough to allow us to unleash and run as swiftly as desired (on the appropriate terrain, of course). These shoes hug the feet so well you'll barely know they're there, but they also provide enough padding to the soles so that you can cruise over terrain with more challenging textures. The soft and thin upper fabric allows the feet to flex up and down with ease when pushing off and landing.

For those up on technical running terminology, these shoes allow easy plantar flexion and dorsiflexion by minimizing the resistance of the shoe to the natural foot movements.

The KSO EVO has a total of 5mm of sole between the foot and the ground — minus socks if you're wearing them (which we rarely did in these shoes). The sole is made of a single material, which is one sign that it is not designed to control any running motions or correct technique flaws (as some more built-up shoes are). These shoes allow you to run just as you would if barefoot so you can focus on the rest of your body and your technique.

Testing the performance of the Vibram FiveFingers KSO EVO in Kolomenskoye Park  Moscow  Russia.
Testing the performance of the Vibram FiveFingers KSO EVO in Kolomenskoye Park, Moscow, Russia.

When our lead tester first tried running in these shoes several years ago, she strained her foot muscles and launched into months of plantar fasciitis — she had committed the classic error of running her normal terrain and mileage in her new kicks. At first, she shunned the shoes. At the time, she had been running in another pair of minimal shoes, so clearly, the problem must have been with the FiveFingers.

Or, maybe not.

For this review, we took foot strengthening seriously, building up slowly and progressively, and we are happy to report healthy, strong feet at the end of months of training and miles of running. We ended up enjoying every minute we spent in these shoes — they made us feel the joy of our childhood summers, running around barefoot in the grass or on the beach, but without the fear of stepping on a bee.

Our only worry with the KSO EVO is the painted-on, plasticized outer protection bands. The edges of these protective coating strips would rub on our feet sometimes. This usually was not noticeable except on much longer runs. And it was more noticeable if the fit of the shoe wasn't absolutely perfect. Take the time to get the right size so that you don't end up with any unnecessary rubbing.

Be sure you get the perfect size and fit when you purchase a pair of FiveFingers! Our first pair turned out to be a tad too large  and the rubbing of this little bit of textured fabric quickly turned into a hot spot.
Be sure you get the perfect size and fit when you purchase a pair of FiveFingers! Our first pair turned out to be a tad too large, and the rubbing of this little bit of textured fabric quickly turned into a hot spot.

Barefoot Accuracy


No shoe could score a perfect 10 in this rating. That's reserved for purely bare feet. Any shoe is going to alter the way you walk, run, jump, kick, play, etc. no matter what — even if it is as minimal as possible. But the KSO EVO sure does come close.


Underfoot, there is just under 5mm of material. The KSO EVO features a 2mm sock liner, has no midsole, and has a 3mm rubber sole. The thin polyester upper allows your foot to move freely up and down (that's dorsiflexion and plantar flexion, mentioned above) during landing, push off, and every motion in between.

Twisting the footbed of the FiveFingers KSO EVO to look for minimal platform stability and maximal freedom for our feet.
Twisting the footbed of the FiveFingers KSO EVO to look for minimal platform stability and maximal freedom for our feet.

In our footbed test, the KSO EVO proved very flexible, confirming ease of movement in all directions, and minimal inhibition of natural foot motion. The sole is easy to twist, so it doesn't offer any artificial stability, and the forefoot is easy to bend, allowing toes to rise and fall naturally as you land and push off. The sole is 5mm (well under the 10mm benchmark) from heel to toe, making it a "zero drop" shoe. There is no traditional toe box, so we can't say these shoes have the signature wide toe box — instead, the toes are entirely independent, similarly allowing the toes to splay naturally and achieve a more stable anatomical platform for running and walking. And the last two details of the footbed test: the upper is lightweight and breathable, and the lacing system is simple, secure, and non-constricting.

Testing the forefoot flex of the KSO EVO in our Footbed Test.
Testing the forefoot flex of the KSO EVO in our Footbed Test.

Weight


The KSO EVO are some of the lightest running shoes on the market. Our European size 41 or US 9-9.5 women's weighs just 8.5 ounces for the pair. We were astonished and pleased.


Since you lift the weight of your shoe with every step, any extra weight on your feet adds up very quickly. Compared to our usual footwear wardrobe, these shoes felt as if we had absolutely nothing on our feet — while still enjoying the benefit of a little protection for our pads.

Traction


This FiveFingers shoe gets most of its traction benefits from the simple fact that you are so close to the ground. This makes it easier to keep your balance and recover from slight slips on loose trails. Since you are not standing on a tall platform, it is easier to sense where you are relative to the ground and much easier to keep your balance and center of gravity when running.


Beyond this, the XS Trek sole from Vibram is optimized for wet conditions, with grooves that allow fast drainage and contact with the ground. The sole also does well on dusty terrain — even much better than most on the dreaded dust-covered-rock phenomenon. The non-marking sole is also excellent for indoor use.

Testing traction on steep dusty social trails in Kolomenskoye Park along the Moscow River  Moscow  Russia.
Testing traction on steep dusty social trails in Kolomenskoye Park along the Moscow River, Moscow, Russia.

Versatility


These shoes are excellent for the die-hard bare-footer looking to expand the benefits of barefoot running into the more challenging seasons. The KSO EVO is a great choice for hot summer runs on asphalt where the heat will melt your pads, and they may also allow you to push the barefoot benefits into the cooler fall months as temperatures start to dip.


The uppers consist of a highly breathable, thin polyester fabric, so they offer no insulation, but may provide just enough on cool-weather runs for those well adapted to barefoot running. The darker colored upper materials can make running in the full summer sun more challenging, but the lightly colored soles do help to keep the pads cool, insulating them from hot ground surfaces.

We didn't mind getting the Vibrams wet  so long as we didn't mind that our feet got wet  too.
We didn't mind getting the Vibrams wet, so long as we didn't mind that our feet got wet, too.

The Vibram XS Trek sole is optimized for traction on wet terrain, making the KSO EVO a good go-to for those who spend most of their running time barefoot, but want to protect their pads from damp trails or frosty morning runs. They won't keep your feet dry, however, if it's really wet out.

Durability


We saw no issues with durability during our testing. These shoes are reinforced where it matters — the rubber of the sole curls up to protect the tips of the toes, and there are snake-like scales on each of the toes to deflect debris and prevent scuffing. There are few seams to fail, and the laces and eyelets are strong enough for long-term use and abuse.

We liked the Vibrams on flat  smooth terrain when we still wanted to give our feet a good workout.
We liked the Vibrams on flat, smooth terrain when we still wanted to give our feet a good workout.

Value


These shoes might not be as cheap as your birthday shoes, which were free, but they're a smashing value. For their simplicity and durability, we imagine you'll get a lot of miles and a lot of fun out of these shoes.

Conclusion


The Vibram FiveFingers KSO EVO is one of the lightest running shoes on the market. They do not offer much other than protection for your pads, and that means these are a great shoe for the barefoot enthusiast who is reluctant to put shoes on at all, but due to weather, terrain, or hygiene, might sometimes need to wear something on their feet. If you're serious about your running form and diligent in your foot strengthening, this is the shoe that will best stay out of your way. We thoroughly enjoyed testing this shoe, though it was not the type of test where you just put on a new pair of shoes and give them a whirl. We spent months building up our foot strength and improving our running economy so we could fully appreciate these minimal running shoes, and because of that we appreciate them very much and award them a Top Pick for being the Closest to Barefoot you can be while still wearing a shoe.

Sometimes going out for a run is really more about stopping to enjoy the wildflowers. The Vibrams let you do both at the same time by picking the flowers and bringing them along between your toes.
Sometimes going out for a run is really more about stopping to enjoy the wildflowers. The Vibrams let you do both at the same time by picking the flowers and bringing them along between your toes.

Lyra Pierotti