Finding the right ski boot size isn’t about your usual shoe size. It starts with two numbers: the length of your foot in centimeters and the width of your forefoot. Once you know those, you can match them to a Mondopoint size, which is the standard sizing system for ski boots.
Start by measuring your feet
You only need a piece of paper, a wall, and a ruler.
- Stand with your heel against the wall.
- Put the paper under your foot.
- Mark where your longest toe ends.
- Measure the distance from the wall to the mark in centimeters.
- Repeat for your other foot and use the longer measurement.
Most people fall somewhere between 22 cm and 30 cm, which lines up with common Mondopoint sizes.
Convert your measurement to Mondopoint
Mondopoint is simple. If your foot measures 25.5 cm, you usually start with a 25.5 boot. If your foot is 26.2 cm, you round to the nearest half size, so 26.0 or 26.5 depending on how snug you want the fit.
Here’s a quick guide:
- 24.0 to 24.5 cm → size 24 or 24.5
- 25.0 to 25.7 cm → size 25 or 25.5
- 26.0 to 26.7 cm → size 26 or 26.5
- 27.0 to 27.7 cm → size 27 or 27.5
- 28.0 to 28.7 cm → size 28 or 28.5
Boot shells don’t change every half size. For many brands, 26.0 and 26.5 use the same shell with a slightly different liner. So choosing between them is usually about how tight you prefer the feel.
Check your width
Length is only half the story. Ski boots also come in different widths called “lasts.” They usually fall into three groups:
- Narrow: 97–98 mm
- Medium: 100 mm
- Wide: 102–104 mm
If your forefoot is narrow or you often feel extra space on the sides in street shoes, go with a narrow last. If you have a wider foot or bunions, a 102 mm or wider last will feel better out of the box.
Measure the widest part of your forefoot and compare it to these ranges. You don’t need an exact match. You just need to choose the category that aligns with your shape.
Decide how snug you want the fit
Boots feel tighter than regular shoes. They’re meant to. A boot that’s too roomy makes skiing harder because you lose control.
- Performance fit: Snug, toes lightly touching the front when standing, but pulling back when you flex forward. This is what most intermediate and advanced skiers prefer.
- Comfort fit: A bit more space in the toe box. Good for casual skiers who want a relaxed day on the mountain.
If you prefer comfort, choose the higher half size in your range. If you want more precision, choose the lower one.
When to size up or down
Choose the smaller size if:
- Your foot length sits right between sizes
- You want a more responsive boot
- You have a narrow foot
Choose the larger size if:
- You’re a beginner
- You have a wide forefoot
- You plan to use thicker socks
Final check before buying
When trying boots on, stand and bend your knees like you’re skiing. Your toes should touch the front when you’re upright, then pull away once you flex. Your heel should stay planted. Any sharp pressure points usually mean the wrong width, not the wrong length.
And remember, liners pack out over time, so a boot that feels “perfect” out of the box may end up too loose by mid-season.
Need help finding the right measurement? You can book a fitting session with our team of experts!