Get the right size.

Finding the perfect helmet fit is essential for both comfort and safety. Our revolutionary SafeFit system adapts to your unique head shape, but starting with the correct size ensures optimal protection and comfort.

Measure your head first

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    Measuring tape

    1. Take a soft measuring tape (like one used for sewing)
    2. Position it about 1 cm above your eyebrows
    3. Wrap it around the widest part of your head
    4. Make sure the tape is snug but not tight
    5. 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.

    1. Grab a piece of string or a phone charging cable
    2. Wrap it around your head 1 cm above your eyebrows
    3. Mark where the string meets or cut it at that point
    4. Lay the string flat on the table
    5. Open the measurement app on your phone
    6. Measure the length in centimeters

    A note for parents

    For children aged 3-4 and up, our small size (49-55 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.

    Perfect fit checklist

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      Position

      The helmet should sit level on your head, about 1-2 finger-widths above your eyebrows.

    • headfirst, helmets, safefit, headfirst

      Comfort

      You should feel even pressure all around your head, with no painful pressure points.

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      Stability

      The helmet shouldn't rock forward or backward when you push it gently.

    • A woman with long dark hair wears a beige headfirsthelmets Bike Helmet with the SafeFit system and a brown button-up jacket, standing against a light background and looking at the camera with a neutral expression.

      Vision

      Your vision shouldn't be obstructed in any direction

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    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.