“X-Ray” a test you must perform on your shoes

xray test

Running shoes are one of the key accesories for runners: they give protection and comfort to each step you take while running.

The relationship between a runner and their running shoes is one of total and unconditional love (to the point of denying to change them even when they’re completely wore out).

Bearing in mind that one of the most important aspects of a running shoe is to give comfort, we want to recommend that before buying a new pair, you perform the “X-Ray test”.


Buying running shoes is a joyful occasion for a runner and also a moment of much uncertainty.

The diversity of the models, brands and pricing can distract you from the important aspects and make your decision extremely hard.

One of the characteristics we consider essential in a running shoe is the width of the toe.

The shoe’s toe is the front part, where our toes are located and, despite of this area’s importance, few runners take it into account when purchasing a new shoe.

Your  running shoes toe’s width is key to guaranteeing comfort and avoiding foot injuries: running using a shoe with a small toe leaves your toes cramped and, in some cases stacks them on top of each other, making your feet move in an inefficient and dangerous way.

The big issue is that there’s no way of seeing what’s going on with your toes inside the running shoes while you run.

However, in this image you will see the difference between using a shoe with a wide toe (pictured left) and one with a narrow toe (pictured right).

Even though it may sound surprising, many runners use narrow toed sneakers and get used to running with bent and packed toes, as you can see in the image on the right.

toe box



Bearing in mind that it’s impossible and unhealthy (due to radiation exposure) to perform radiographic imaging to see the location of your toes, we recommend you do the X-Ray Test

The X-Ray Test is very simple, you just have to be barefoot and place your feet over the sole of your shoes.

The main objective of this test is to determine how comfortable your toes are inside the sneakers.

That’s why you should pay special attention to the space between your toes and the sneakers’ soles’ edges.

In the case that any of your toes are too close or exceed the edges, it will be a sign to immediately change your running shoes.

Here are some examples of the tests we performed with different shoes:

xray test


Despite the running shoes’ importance, the fact is that out of the 24 hours of the day, running is a minor portion of it.

That is to say, it’s likely that for most of the day you’ll be wearing other types of footwear and that’s why we recommend performing the X-Ray Test on your daily footwear.

So you may appreciate the importance of this, we invite you to see another interesting image that shows the difference between the feet of a person accustomed to being barefoot and a person accustomed to narrow footwear.

descalzo vs calzado


 Conclusions drawn from a comparative study of the feet of barefooted and shoe-wearing people – http://bsmpg.com/Portals/52884/docs/1905Hoffman.pdf