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Ski Boot Sizing Chart & Tips

 

MONDO (cm)   MEN (US)   WOMEN (US)   EUROPE    UK   
15 8 (youth)   25 7
16 9 (youth)   26 8
17 10 (youth)   27 9
17.5 11 (youth)   28 10
18.5 12 (youth)   29 11
19.5 13 (youth)   30.5 12
20 13.5 (youth)   31 13
20.5 1   32 13.5
21 2   33 1
21.5 3   34 2
22 4 5 35 3
23 5 6 36.5 4
24 6 7 38 5
25 7 8 39 6
26 8 9 40.5 7
27 9 10 42 8
28 10 11 43 9
29 11 12 44.5 10
30 12   45.5 11
31 13   47 12
32 14   48 13
33 15   49 14
34 16   51 15

 

NOTE: Regardless of what the stickers on the ski boot or ski boot box say, ski boots are only available in full size increments. This means that a size 28 and 28.5 ski boot are the exact same liner and shell. Manufacturers may include a "size adjuster" shim that can be placed between the shell of the boot and the liner to reduce the overall volume, but this is not always the case. Some kids boots also have adjusters on the outer shell to shorten or length the shell of the boot (an awesome feature for growing kids!). The above chart is a good starting point to determine your size, but remember that all manufacturers and boot models vary and each has its own fit profile. If you have the ability to try a boot on in-person before buying, please consider doing that!

What is Mondopoint Sizing? And why are ski boots sized this way?

Developed by ski boot manufacturers to create a universal sizing system, Mondopoint (aka Mondo) is simply the length of your foot in centimeters. The above chart is a conversion for Mondopoint in a comfort fit, but if your an expert skier looking for greater control with a ski boot that fits more snuggly, we recommend sizing down one full mondopoint size (i.e. if you wear a men's size 9 US shoe but want a performance fit ski boot, look for a 26 or 26.5 ski boot). 

What about ski boot last (aka width)?

Ski boot manufacturers offer ski boots with a "last" or width that ranges from 96mm to 106mm. This is the measurement of the inside of the ski boot at the widest point of the forefoot area. Many of the ski boots that we sell tend to be either medium or wide width as this is most comfortable for the greatest number of people. With the used ski boots that we sell, we often don't know what the width is, but if you know that you have a really wide foot or narrow foot, then please send us an email at [email protected] and we can make some recommendations for you! 

If you can stop into our retail shop in Colorado Springs, Rocky Mountain Ski & Sport, or stop into your local shop that sells ski boots, it's always better to try on a few different width ski boots to find what feels best to your foot shape! 

What is ski boot flex (aka stiffness)? Why would I need a ski boot with a high flex rating?

Ski boot manufacturers assign a number to a boot that conveys how stiff that boot is when it's flexed forward. The higher the number, the less flex that the ski boot will have. A ski boot with a high flex rating will transmit better ski "feel" which will help with initiating and carving turns, as well as with offering better stability at higher speeds. A lower flex rating will offer more cushioning in choppy snow conditions and also tends to be more comfortable against your shin since the boot will give more. We recommend beginners to start with a lower flex rating as this will be more comfortable, and as you start to gain more confidence, then you may want to seek out a ski boot that gives you better performance to match your skill level.  

A stiff boot is often better for more experienced skiers or those weighing above average. The flex rating is determined by the ski boot manufacturer (there is no industry standard for this rating!), so it's always best to try on a boot to ensure it feels right for you. 

Ability Beginner to Intermediate Intermediate to Advanced Advanced to Expert Expert to Racer
Men's Flex Rating 60 - 80 85 - 100 110 - 120 130+
Women's Flex Rating 50 - 60 65 -80 85 - 100 110+
Feel Soft Medium Stiff Very Stiff

 

My kids keep outgrowing their ski boots! What can I do?

We understand that they grow up quickly - and ski gear isn't cheap if you have to keep buying new stuff every year or two! Below are few options that we recommend considering to keep these costs low:

One other tip when buying gear for kids is to look for ski boots that have an adjustable shell. This style boot will typically offer 2-3 size adjustments, so that as you kids foot grows, you can adjust the shell to make it fit better. The liners also stretch more to accomodate the range of sizes that the boot shell can be adjusted to. Roces and a few other ski boot brands offer these types of boots, but they do come with a higher upfront cost. Additionally, this style ski boot also tends to be better suited for beginner to intermediate skiers, so if your kid is ripping down the double black diamond expert runs, it's probably best to go with a traditional boot that doesn't have the adjustable shell.