Size Chart
HELMET SIZE GUIDE
Our adult helmets come in six (6) sizes across two (2) shapes. Our junior helmets come in three (3) sizes only.
Shapes:
Round: Shaped for a head which has almost identical front-to-back and side-to-side measurements.
Long Oval: Shaped for a head which is longer front-to-back (from forehead to the back of the skull) than it is side-to-side (ear to ear).
Perfect Fit:
You can achieve the perfect fit by using our foam liners. See below for more details on helmet liner conversions.
HELMET LINER CONVERSION CHART
ADULT LINERS
One K Liners are the easy way to refresh your helmet or size up or down for a helmet that doesn’t quite fit.
The liners are removable and washable so you can instantly refresh your helmet.
The liners can also convert your helmet to a smaller size, which is great for growing riders or sharing your helmet with others.
Available in XS – XXL for adults. Round and Long Oval shaped helmets use the same liners.
JUNIOR LINERS
One K liners are also available for junior helmets.
The liners can convert your helmet to a smaller size, which is great for growing riders or sharing your helmet with others.
Available in XS – M for juniors. Round and Long Oval shaped helmets use the same liners.
Custom Color System (CCS) Size Guide
Accesory Sizes
Three (3) sizes for our CCS accessories cover all of our CCS helmet sizes. See chart for more details.
