Measure your foot for Z-Trek and Z-Trail

Barefoot sandals don’t fit the same as shoes, or other sandals. Just because you wear, for example, a size 10 Nike Free, that doesn’t mean you’ll wear a size 10 Z-Trek or Z-Trail (and most likely you have other shoes that are 9.5 or 10.5… so are you really a 10?)

Please follow the instructions below to help get the correct fit for your Xero Shoes sandals.


Since the foot is three-dimensional, any two-dimensional measuring tool, such as a ruler or Brannock device, can only approximate your true shoe size. Manufacturers model their shoes on different foot shapes, so sizing may vary accordingly.

Our sizing recommendations are based on customer feedback, however we cannot 100% guarantee a proper fit.

Step 1 - Measure your foot

Place a piece of paper against a wall (if you have VERY large feet, use a piece of newspaper).

Place your foot on the paper, with your heel against the wall.

Make a mark on the paper at the furthest point away from the wall… this will either be just in front of your big toe or second toe.

Take a ruler and measure from the edge of the paper to the mark you made.

Here’s a video showing the process...

Step 2 - Check your measurement against the sizing charts

These charts will give you a good idea of your size… but PLEASE also follow Step 3 whenever possible.


Men - Wider Sole, Wider Webbing


Foot Length




6 Up to 24.0 cm 5 38 Click to view
7 Up to 24.8 cm 6 39 Click to view
8 Up to 25.6 cm 7 40/41 Click to view
9 Up to 26.5 cm 8 42 Click to view
10 Up to 27.3 cm 9 43 Click to view
11 Up to 28.1 cm 10 44 Click to view
12 Up to 29.0 cm 11 45/46 Click to view
13 Up to 30.0 cm 12 47 Click to view
14 Up to 30.9 cm 13 48 Click to view


Women - Narrower Sole, Narrower Webbing


Foot Length




5 Up to 22.3 cm 3 35/36 Click to view
6 Up to 23.1 cm 4 37 Click to view
7 Up to 24.0 cm 5 38 Click to view
8 Up to 24.8 cm 6 39 Click to view
9 Up to 25.6 cm 7 40/41 Click to view
10 Up to 26.5 cm 8 42 Click to view


Step 3 - Print the template to verify the fit

You can verify you have the correct fit by printing the template and comparing it to your foot.


- Make sure you print the template at actual size (100%) and CHECK THE MARKED SCALE WITH A RULER.

- You MAY be a different size in the Z-Trail than the Z-Trek. The Z-Treks run a tiny bit longer than true size, and the Z-Trails are typically about 4mm shorter.

- For women, if your foot is longer or wider than the template, try one of the men’s sizes.

Here’s a video showing how to use the template...

Any questions?

We want to make sure you get the correct size and enjoy your Xero Shoes.

If you have any questions or concerns, please contact us.