Proper helmet fit is vital to the performance of a helmet during an impact. For the helmet to perform properly, it must fit perfectly to stay securely on your head.

Measuring the head is only a starting point for the entire sizing procedure. Due to varying shapes, heads that are apparently the same size when measured by a tape may not necessarily fit the same size helmet. A cloth tape must be used to take your measurement. You can also use a string, which can then be laid against a measuring tape.


Measure the circumference of the head at a point approximately one inch above the eyebrows in front, and at a point in the back of the head that results in the largest possible measurement. 

Take several measurements. The largest measurement is the one you want to use. If you have facial hair or a lot of head hair, you may consider ordering one size larger from what is shown on the sizing chart. Please also take into account your head sock which will add to your overall size.

Once you are positive of your measurement you can reference our sizing charts below to determine your size per each manufacturer, as they all are slightly unique in their fitment.

Trying on the helmet will always be the ultimate way to ensure the perfect fit. Please be 110% positive of your measurement, we cannot stress this enough !




Brett King Design waives all financial responsibilities for incorrectly sized helmets that are ordered directly from us and custom painted without a sizing confirmation by the customer. No refunds will be made for the helmet itself, or for the custom paint work performed.

If you are not positive of your sizing, please contact us to discuss. It is possible to arrange shipping the helmet to verify proper fitment prior to performing custom paint work. All shipping charges incurred in doing so are the customers responsibility.