Here you will find all ski boots for the whole family! Ski boot sizes is in Mondo sizes and indicates the inner measurement on the boot in centimeter (or millimeter). For example 26,5, 27,5, 285 and so on. The simple way when you are about to pick a size is to measure the length on your foot. Stand in a position just as when you are skiing and put as much weight on the front as in the heel and then measure. If your foot is 26,3 centimeters, you should pick 26,5 as a size if you want a tight fit. Choose 27,5 if you want some extra space and comfort. The shell of the boot with a size 26 and a 26,5 is the same. The space inside is determined by the insole. Size 26 have a thicker insole. This makes it easy to change the ski boot if you want some more space, just use a thinner insole. If you need a tighter fit, you can always build on the inner shoe a little. But you can only do so much and then you need to switch shell. So, when you are choosing size you should ask yourself if you prefer a tight fit or one with a bit more space. In general, a professional or a person that is skiing a lot want a tighter fit because it provides better skiing. But if you are a beginner, you will probably prefer a more spacious fit.