First you will need to grab a measuring tape, preferably a cloth one, and stand in front of a mirror.
Grab your measuring tape and wrap it around the widest part of your head, which is typically 1-2 cm or 0.5in above your eyebrows and your ears. Make sure not to pull it too tight, you want it to fit snug, like you would a helmet. If you have creases in the tape then it’s too loose.
Once you found the magic number, just take the tape off your head and check your size. All of our size charts have both Metric and Imperial units to correspond to your alphabetical size. Make sure to take several measurements until you find the largest one.
Keep in mind that all of our helmets can be customized further to get you into that perfect fit; From fit-wheels to replaceable padding. The above measurements will also correspond to our goggle size charts.
Also, if you already owned (or tried on) a Shred helmet, consider that the fit can be different from that of a different model. For example, a size XL Half Brain may not have the same fit and/or size range as an XL Basher Ultimate. We recommend you measure your head circumference as described in the size chart and choose the size based on the sizing numbers, e.g. "(58-61)".
If you’re in between sizes it is best to round up to the larger one.