Ultimate Ski Boot Size Guide

Last updated 18. May 2019

Ski boots are a paramount piece of equipment for any potential skier and finding the right fit and style of ski boots to meet your needs can be a difficult task.  The primary objective in your hunt for the perfect ski boots is finding the most comfortable fit while ensuring that performance is not compromised.

two men learning skiingSki boots are of course very different from standard shoes, and so you cannot merely assume that you will be able to purchase your normal shoe size due to the differences in the ski boot construction.  The feet of every individual has their own shape, size, and flex and so size is not everything; you should also take into consideration your weight and height along with the regularity of your leisure activity along with your skiing aspirations.

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What Size Ski Boots Do I Need?

When preparing to purchase ski boots, you should ensure that they fit properly and that means measuring your feet correctly.  A scale called Mondopoint is used to measure the length of your feet in centimeters by completing these steps:

● Place the back of your foot against the wall
● Point your toes outwards
● Measure the distance from the end of your toes at their longest point to the wall
● Find the length of your foot in centimeters
● Therefore, if your foot length is 27 cm, then your indicated Mondo size is 27
● For the best results, wear a thin pair of ski socks.

This method is much more effective than merely converting your standard shoe size to the Mondopoint chart.  Once you have found your Mondo size, make sure to try a pair of ski boots on as there can be inconsistencies across brands.

You should also take into consideration that after you have worn your new ski boots several times, the ski boot liner may decompress and there may be more available space inside of your boot than when you first bought them.  This is particularly important for beginner skiers.

The more experienced skier may feel more comfortable wearing a ski boot very close to their Mondo size as they are used to the feel of wearing ski boots.

An expert skier, on the other hand, may choose a slightly smaller ski boot, although a professional boot-fitter may be required to ensure the ski boots fit well.  It is important to remember that ski boots do not usually come in half sizes so so trying on your ski boots before buying them is crucial.

Trying on Your Ski Boots

Once you have found the Mondo size of your feet, you should try on a variety of ski boots to find the best fit achievable.  When purchasing your ski boots, you want to achieve longevity throughout the duration of the season.

The fit of your ski boot will change after some use so when trying on a new pair of ski boots, look for a gentle feeling of pressure across your longest toe when you have fastened on your ski boots, and your leg is upright.

If there is any discomfort when wearing the boot, you could take out the liner and try that on by itself to assess what is the source of the discomfort.

When trying on your ski boots, you may hear the professional boot-fitter talk about the ‘shell fit.’  The ‘shell fit’ is the name given to the length of the interior of the ski boot and involves completing the following steps:

● Take your foot out the liner of the ski boot
● Insert your foot into the shell of the ski boot and push your foot forward so that your toes touch the end of the shell
● Measure the distance between the back of your heel and the back of the ski boot shell.

What Size Ski Boots for Wide Feet?

As well as finding the length of your feet you should also consider the width of your feet and whether you need a narrow, medium or wide pair of ski boots.

The width of the ski boot can be determined by measuring across the forefoot, encompassing the metatarsal heads.  A wider ski boot may also include additional volume across the whole interior.

A narrow ski boot is ideal for feet measuring 97mm to 9.8 mm across the forefoot whereas a medium width ski boot allows for forefoot measurements of around 100mm.  For wider feet measuring 102 mm to 106 mm across the forefoot, a wider ski boot width will ensure comfort at all times.

Extremely wide feet, or feet containing irregularities such as bunions, would benefit significantly from the advice and expertise of a professional boot-fitter.


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By Jason

Passionate writer, Scooter Dad, Father of two, Super active, Tough Mudder conqueror reviewing the some of the top sports related products me and my sons use and love. If you have any suggestions for improvement of MPS, please ping me a message.

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