Mens Vibram FiveFingers KSO Running Shoe at Road Runner Sports
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Mens Vibram FiveFingers KSO Running Shoe

Men's Vibram FiveFingers KSO

Item #VFF102

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Reviews (7)
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Product Description:

Men's VIBRAM FIVEFINGERS® KSO :: Your favorite barefoot runner is designed to give you total protection for any activity. Vibram's popular KSO or "Keep Stuff Out" model will do just that while keeping your feet safe and comfortable thanks to the thin abrasion-resistant stretch nylon and breathable mesh upper. Feet won't slip inside thanks to the simple hook-and-loop closure or out due to the razor-siped rubber outsole. Toss in the washing machine for easy cleaning, let air dry and you're ready to go!

! Endangered Shoe [?]

Features & Benefits:

  • A thin abrasion resistant stretch nylon upper wraps your entire foot: Keeps debris out
  • Non marking 3.5MM Vibram TC1 rubber outsole: Razor siped for a sure grip
  • 2MM EVA insole: Provides enhanced plating protection
  • 1000008957
  • Drop: 0mm
  • WEIGHT: 5.7 ounces

Product VFF102 Review

A different running animal


They look a little goofy but I love these things. I will say however that they are not for everyone. I have been running/working out in the KSOs for about 3 years and have done 3 half marathons and 3 10k races. It takes a few weeks to get acclimated to these if you are coming from traditional running shoes. There is no arch support and you have to change your running style so that you are not striking your heels at all. You either have to run on the balls of your feet or more flat footed, this results in your muscles absorbing the impact and being sore for a while. I typically only run about 9 - 12 miles a week but use them in the gym 4 -5 times a week. I found them good for improving overall stability since your body can't rely on the shoe for heel support. I run on fine crushed gravel and on concrete but can't run below 40 d F. I tried running a few times when it was 29 d F outside and my toes went numb. It is awesome running on grass or softer ground, but have to watch out for larger stones. In traditional running shoes I am heel striker but found these more comfortable since it forces me not to strike anymore. The shoes are supposed to be a little tight. A friend of mine got the KSOs and they were a little big and his foot moved around and got blisters. I have to get another pair because after 3 years the fabric is just wearing out. You have to wash them periodically since they can get a little funk to them.

Upstate Ed

Spencerport, NY


The closest thing to Barefeet, I love em


I did a lot of research on this product. I 1st heard about it a year ago. I am happy to say it is exactly what I was looking for as a training shoe. I had no idea it would feel so great on my feet. It is like putting on a pair of slippers. My feet only took one day to adjust to the idea of the minimal sole. I would recommend they to all.


North Conway, NH


KSO is great


I run five days per week in my KSO's. It took two weeks to get accustomed to the different strike of the foot and my calves had to get stronger as well. My feet now feel better in these than in shoes. I do not have the joint pain I once did with shoes. I love these shoes.


Bryan, TX


Good shoe


When I made the switch from traditional running shoes to the Vibrams I started out with KSOs. I liked them a lot and they definitly convinced me to never go back. But, I always had a tough time getting them on. Once on my feet they felt great but it sometimes took forever. The soles are also pretty smooth and I found myself slipping in wet and icy conditions. A couple months ago a switched to the Bikilas and absolutely love them! They slide right on, feel great and they have a slightly more aggressive tread which helps a lot on the road. I run about 60 miles a week and they are holding up great. If you're a road runner, I recommend you try the Bikilas.

John Sovocool

Cooperstown, NY

These are awesome!


I've tried all kinds of expensive running shoes to limit/minimize shin splints, and they've all failed until I tried these. I used to get shin splints in the first half mile of running, however now with these I can easily put in 2 miles with no issues! I love these! Plus they look pretty unique...


Houston, TX


GREAT Company, GREAT Shoe!!!


Vibram's sizing chart is a little different than the sizing chart at your company. I ended up sending the shoes back, and getting one size smaller. I use these Five Finger Shoes teaching Brazilian Jiu Jitsu on a mat, and they are PERFECT for this.

Combative Jiu Jitsu

Chino Valley, AZ


Great shoes


This is my fourth pair of KSOs. Each pair lasts roughly one year for me. Great for running, weight lifting, any aerobic exercises, playing soccer, whatever. I won't run in any other type of shoe.


Nashua, NH


Mens Vibram FiveFingers KSO Running Shoe

4.7 7


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  • Deep heel cup: Features the widest and deepest heel cup that offers maximum support and positions the soft tissue to help with natural shock absorption
  • Biomechanical shape
  • High-density foam: Closed-cell foam supports and cushions the foot for long lasting comfort
  • Odor-control coating: All natural coating that eliminates odor-causing bacteria
  • Stabilizer cap: The base of the insole that supports the rear foot and provides structure and stability to the foam layer


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