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How to measure your foot for ski boots & Ski boot sizing chart

How to properly measure your foot like a professional ski boot fitter.

The key to finding the best ski boot for you is to determine your correct foot size. Feet, like ski boots, come in different shapes and sizes. Knowing how to correctly measure your feet will help you find the best ski boots for you. Here is everything you need to know about your feet before you purchase ski boots online.


How to Measure your foot

What you need.

  • A couple sheets of paper

  • Tape Measure (Body or Fabric recommended)

  • Tape

  • Pencil

  • An extra set of hands (Optional but recommended)

  • Mondo size

Your Mondo size (short for Mondopoint) is the length of your foot in centimeters. Before you Google how to convert your shoe size to Mondo, I urge you to grab a ruler, a few pieces of paper, some tape, and a pencil and follow the directions below.

  1. Find a straight wall and tape the piece of paper on the floor with the narrow end flush up against the wall. A standard piece of paper should work unless you have a-larger-than average foot.

  2. With a thin pair of socks on, plant your foot firmly on the piece of paper with your heel against the wall and trace your foot with a pencil. Be sure to keep the pencil upright and not on an angle, as this can lead to inaccurate results. (For the most accurate results, ask a friend or family member for help.)

  3. Now that you have an outline of your foot, measure the outline at its longest point in centimeters. This is your Mondo measurement.

Now Repeat with your other foot.

  • Know your Last

What’s a Last, you ask? Your Last, or foot width, is the measurement of the widest part of your forefoot in millimeters. Using the outline of your foot and your ruler measure out the width of your foot at the widest point of the forefoot.

Now Repeat with your other foot.

Your Mondo and Last are the primary measurements you need to know before you start looking for ski boots. In addition, there are a few more measurements to at least be aware of while you shop, especially if you have a high instep or large-than-average calves.

  • Know your Instep

Your instep is the arched middle portion of your foot in front of the ankle joint. Essentially, it's the upper bend or bow of the upper foot. Knowing the exact dimensions of your instep is not necessary, but it is important to keep in mind if you have a high arching foot, as a high arch and instep usually go hand in hand. Most high volume boots will suit a high instep, but if you have had issues in the past with a traditional alpine ski boot, you may want to consider a 3-piece style boot with a moldable tongue and a quality aftermarket foot bed.

  • Calf Volume

Calf volume is the mass of the lower part of your leg from the back of your ankle to behind the knee. An exact measurement isn't necessary, but this is an important consideration if you have a larger –than-average calf. If your calf is on the larger side, you will want to look for a high volume boot with a wide or adjustable cuff.

Ski Boot Sizing Chart


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