Ultimate Ski Helmet Size Guide

Last updated 08. January 2019

If you’re going skiing this winter with your family or a group of friends, then a ski helmet is more than an essential. It will protect your head if you ever fall over or hit something dangerous like rocks when you’re sliding down the slopes.

These are so important in protecting your life, and because of this, it’s extremely important that you purchase the correct size for your head. If you do end up buying one that doesn’t fit so well, then you could be risking your life, because if you fall or hit something you may not be completely protected. This is why it’s so important.

So how should ski helmets fit?

There is a whole range of ski helmets out there that you can choose from, but there is one thing that you should be careful of, and that’s the fact that different brands may vary in size. So each helmet may differ, and you may have to try them on to get the right fit for your head.

There are certain ways in which you will know if your ski helmet fits or not. If the helmet is for you, it should feel quite snug on your head, and it shouldn’t be able to move around. But before you try any helmets on you will need to measure your head. In order to do this, you will need to get a tape measure and place it around the whole of your head approximately 1 inch just above your eyebrows and ears. You will also need to do this in cm.

Once you’ve tried the helmet on it’s important that you conduct a shake test. If you shake your head and the helmet does move around, then it’s more than likely too big for you. The helmet should never be able to shift on its own, and when you move your head, it should just move with your head. To know if your helmet is too tight then you will feel like it is squeezing your head.

Size Chart

This size chart is for: B-Style, S-Star, B-Wild, B-Fun, Sharp, Juliet, Millenium, Synergy and Osmoz types of helmets.

Length Small Medium Large
Cm 52-54 54-58 58-61
Inches 20.5-21 21-23 23-24

Backline Size Chart

This size chart is for Backline Visor and Backline helmets.

Length Small Medium Large
Cm 54-56 56-58 59-61+
Inches 21-22 22-23 23-24+


One thing you must always remember is that sizes do vary on different people because some may have different head shapes to others. Also even if you measure as one of the sizes above, the helmet may not fit you because of your head shape, so it’s always important to try the helmets on first before buying them.

Adult size info:

One thing that you should be aware of is the fact that weight can also come into account. This is because it can actually control the levels of comfort that you will feel. When your trying the helmet on you should also make sure that the chinstrap is fastened to the right tightness for you. It’s also important that there are no gaps between your head and the helmet lining.

There are several things that you should remember before you purchase or rent a ski helmet and that is that you should always know what you want to get out of it before going any further. Renting a ski helmet is never recommended as you do not know how much damage it has previously had.

Child size info

When you’re buying a children’s ski helmet, it may be more difficult, and this is because the child may not know how to describe how the helmet feels on them and if the fit is right for them. Therefore it’s important to notice how they are reacting to wearing the helmet and if they complain about it hurting.

One very important thing that you should never do is buy a helmet that is bigger on them and think that it will be fine as they can grow into it. This will put them in a lot of danger because if they fall and hit their head when snowboarding it may not be able to protect them and could cause damage.

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