Foot shapes & sizes vary greatly from person to person. 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. While not definitive and impossible to be exact, it has proven to be accurate most of the time.

What defines a good fit?

A good fit is best described as:

  • When your heel is seated comfortably into the back of the shoe once all of your toes are inside each toe pocket. When you stand up your toes should be comfortable, relaxed and flat.
  • There should be a bit of space at the end of each toe pocket and a bit of space around the heel to allow for swelling after exercise or wearing on a hot day, anywhere from 1mm to 5mm is good for the toes. It’s acceptable for one of your toes to be just touching the end of the toe pocket but nothing more. You should avoid a tight fit where your toes are right at the end of the pockets as tight does not allow the toes or foot to move naturally.
  • The one comment we regularly get is that the little toe feels funny. Of all the toes, the little toe is the one that gets pushed into the foot the most as a result of the less than natural footwear we wear in modern society. This sensation is simply the little toe being gently encouraged back out, this sensation dissipates very quickly within a few minutes.


Foot Types

There are three main foot types that best describe most peoples general foot shape; flat, normal, and high. As each of the shoe models have slightly different fits, we have found each model has a foot shape it suits best.

The second element of fit would be width of the forefoot. The FiveFingers® are designed to be very width tolerant with all current models able to accommodate from a medium up to a wide EEE fitting achieved through the use of stretch fabric upper allowing for maximum comfort. If you have a narrow foot the Sprint tends to offer the most width tolerance.

How to measure your foot

For best results in finding your size we recommend measuring both feet, heel to toe. Standing with your heels against a flat wall:

  1. Slide ruler under each foot
  2. Be sure to measure the end of the longest toe
  3. Take the longer of the two measurements



Note: If your foot length varies by more than 0.4cm, it will be difficult to get a precise fit for both feet. If your second toe is more than 0.4cm longer than your big toe it will be difficult to get a precise fit.

The KSO and Flow offers a slightly larger fit, as such if you are just over your size - stick with the smaller size. With all other models, opt for the larger size.

Foot length (cm) 25.4 26.1 26.7 27.3 27.9 28.6 29.2 29.9 30.5
Size 40 41 42 43 44 45 46 47 48
Foot length (cm) 21.3 21.9 22.6 23.2 23.8 24.5 25.1 25.7 26.4
Size 34 35 36 37 38 39 40 41 42