As you can see, the KSO model looks a bit more heavy duty than the others. KSO stands for Keep Stuff Out and that’s exactly what they do. The Vibram Five Fingers KSO provides more protection for your feet while trekking over rough terrain. Your foot is fully covered but part of it is a mesh material so that your feet can breathe. The strap around the ankle really secures the fit so that nothing is getting into these shoes. The Vibram KSO takes good care of your feet.
Vibram Five Finger KSO
