Measure your head first
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Measuring tape
- Take a soft measuring tape (like one used for sewing)
- Position it about 1 cm above your eyebrows
- Wrap it around the widest part of your head
- Make sure the tape is snug but not tight
- Note your measurement in centimeters
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Don't have a measuring tape? No problem.
String and mobile phone
Don't have a measuring tape? No problem.
- Grab a piece of string or a phone charging cable
- Wrap it around your head 1 cm above your eyebrows
- Mark where the string meets or cut it at that point
- Lay the string flat on the table
- Open the measurement app on your phone
- Measure the length in centimeters
Stuck in the middle?
We offer two sizes: Small (50.5 – 56 cm) and Large (56 – 61.5 cm).
If your head measures up to 55.9 cm, we recommend the Small. From 56 cm and up, choose the Large.
To fine-tune your fit, every helmet comes with two sets of back padding — one thin and one thick. Swap them to match your head shape and lock in that just-right feeling.
A note for parents
For children aged 4 and up, our small size (50.5-56 cm) should fit well. Always measure your child's head before purchasing, as head sizes can vary considerably among children of the same age. The beauty of SafeFit is that it can grow with your child, adapting as their head shape changes.
Remember: the safest helmet is the one that fits properly and is worn consistently.
Still not sure?
Our SafeFit system is designed to adapt to a wide range of head shapes within each size range. If you're between sizes, we generally recommend sizing up and letting SafeFit create the perfect fit.
Have questions? Our team is here to help. Contact us at hello@headfirsthelmets.com with your measurements, and we'll help you find your perfect fit.
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