KSO - for Keep Stuff Out! New from Vibram, these Five Fingers are re-designed off of the Vibram Five Finger Classics, but with higher coverage on your feet to keep stuff out! KSO's are made with a thin, abrasion-resistant stretch polyamide mesh fabric fits up over your arch on the foot - for comfort and quick drying. A flexible, non-marking TC1 performance rubber sole is razor-siped to enhance grip over a variety of terrain.
What Size is Right for You?
Foot shapes and sizes vary greatly. FiveFingers do provide some fit adjustment, but may not fit every foot type. To achieve the best fitting results for the particular style you are interested in, we recommend you follow the sizing chart and instructions below:
1. Stand with your heels flush against a flat, vertical wall.
2. Slide a ruler under each foot and measure the distance from the wall to the tip of the longest toe.
3. Take the longer of the two foot measurements.
What Size is Right for You?
Foot shapes and sizes vary greatly. FiveFingers do provide some fit adjustment, but may not fit every foot type. To achieve the best fitting results for the particular style you are interested in, we recommend you follow the sizing chart and instructions below:
1. Stand with your heels flush against a flat, vertical wall.
2. Slide a ruler under each foot and measure the distance from the wall to the tip of the longest toe.
3. Take the longer of the two foot measurements.




















