Ski boot size guide

How to choose the right size of ski boots?

Here are a few tips to help you choose your ski boots and select the model that suits you best.

Define your level and type of skiing

To choose ski boots that are perfectly suited to your feet, it is important to know your level and type of skiing. Expert skiers, freestylers, and pure alpine skiers will not choose the same boots, as their skiing styles are completely different.

Define your level: beginner/intermediate/advanced/expert, as well as your type of skiing: piste, freeride, freestyle, all-mountain, touring, etc

Determine the flex of your boot

Your choice of flex for your alpine ski boot will depend on your skiing style, but above all on your skiing level and your size

What is flex?
It is an indicator of the stiffness of your boot. The higher the flex, the stiffer your boot will be, and therefore the more responsive.
Conversely, a more flexible boot will be more forgiving and comfortable.

Choosing the right flex is therefore crucial:

For men, it is generally considered that:

- A flex of 70 to 90 is designed for beginner to intermediate skiers
- A flex rating of 90 to 110 is designed for intermediate to advanced skiers
- A flex greater than 110 is designed for expert skiers Please note: A flex that is too stiff for an average skier will limit their progress.
- For a very heavy and powerful skier, the flex of the boot will need to be increased.

For women, it is considered that:

- A flex rating of 60 to 80 is intended for beginner to intermediate female skiers
- A flex of 80 to 100 is intended for intermediate to advanced female skiers
- A flex greater than 100 is intended for expert skiers

The type of skiing is also a determining factor: a freestyle boot is not expected to have the same grip and flex as a piste boot, where the transmission of support is very important.

Choosing the width of your boot

Every foot is unique, so it is essential to choose the right pair of boots and take the time you need when buying them.

The number given as the boot's last corresponds to its width at the front of the foot. Ranging from 92mm to 104mm, every foot can find the right boot width. The boot's last is given for a sample size of 26.5, but keep in mind that if your feet are larger, the width of the boot you try on will be greater. Your foot should be evenly supported, with good support at the metatarsals and heel. However, your toes should be able to move freely. Your foot should not feel compressed.

Choosing the right boot size

Finally, it is important to choose the right size of men's or women's alpine ski boots. This is measured in Mondo Point or MSS (Metric Sizing System). This is the length of the foot in centimeters. When flexing, the toes should just touch the tip of the boot.

To determine your size, we recommend printing out the official Speck foot gauge.

How to use it:
- Print the page at 100% scale without resizing. You can check the printout with a ruler.
- Fold the sheet along the bold lines and place the fold at the heel against a wall
- Place your foot flat with your heel touching the wall. Bend your knees slightly; your foot will lengthen a little.
- Mark a line in front of the longest toe. This will be your Mondopoint size. If in doubt, choose the next size up.

Download the official Speck foot gauge

What is Mondopoint?

Mondopoint is a measurement system often used for ski boots. It is based on the length of the foot in centimeters. Mondopoint is generally specified in millimeters. For example, a ski boot size of 27.5 Mondopoint is equivalent to a foot length of approximately 275 millimeters.

The advantage of the Mondopoint system is that it allows for a more accurate match between boot size and foot length, which is particularly important for ski boots, as a precise fit is essential for comfort and performance when skiing.

When buying ski boots, it is common to see the Mondopoint size listed in addition to traditional boot sizes (e.g., European or US sizes). This allows you to find the ski boot size that best matches your foot length in millimeters, which can help ensure a proper and comfortable fit for your feet when skiing.

The 5 key points for choosing the right ski boots:

Choosing the right ski boots is a crucial step for any skier, whether beginner or experienced. Ski boots are one of the most important pieces of equipment, as they are responsible for transferring power between the skier and the skis, providing stability on the slopes, and ensuring comfort throughout the day. There are many criteria to consider when choosing ski boots, but we will focus on the 5 essential key points and other important criteria to consider.

1. Size and fit: The size of your ski boots is essential. Boots that are too small can cause pain and numbness, while boots that are too large can lead to a loss of control. The fit must be adapted to the shape of your foot for optimal comfort.

2. Flexibility: the flex of the boot determines its level of rigidity. Beginner skiers generally prefer more flexible boots, while experienced skiers opt for stiffer models for better power transmission.

3. Type of skiing: Boots vary depending on the type of skiing practiced. Alpine ski boots are different from those designed for ski touring or cross-country skiing, for example.

4. Closure system: Ski boots can have different closure systems, such as buckles, laces, hooks, or quick-release systems. The choice depends on your preferences and convenience.

5. Custom fit: Some ski boots offer the option of customizing the fit by thermoforming the shell to fit your foot perfectly.