Sizes listed in UK size, then comparable EU size. Foot length in millimeters (Mondopoint) is found in the chart below. The last width on these is regular: if you have especially wide feet, consider picking a half-size larger.

Official measuring guide for Salomon footwear

Tools:

• Use a shoe box or a wall with a 90° angle.
• Find a sheet of paper or a sheet of cardboard, a ruler and a pen.

What should you do next?

• Make sure that you are wearing the same socks that you would normally wear with this type of boot.
• Wearing these socks, stand on the sheet of paper and place the outside of your foot against the wall or place your foot in the shoe box with your heel wedged firmly against the back.
• Then use your pen and ruler to draw a line just in front of your big toe.
• Measure the distance between the wall or the side of the shoe box and the line that you have just drawn.
• Find this measurement in millimetres in the chart. If you fall between sizes, pick the larger one. A couple of mm extra length of a shoe doesn't hurt, but even a slightly too short shoe is bad.