Helmet Sizing Guide
Helmet Sizing Guide
Protect your head. Get the right fit. Stay Rotten.
A helmet should feel secure and comfortable every time you skate. Start with your head measurement, then use the manufacturer’s sizing chart for the specific helmet model you’re buying. Sizes can vary between brands—and even between styles from the same brand.
How to Measure Your Head
- Use a soft measuring tape and wrap it around your head, just above your eyebrows and ears.
- Keep the tape level around the fullest part of the back of your head. It should sit snugly without digging in.
- Record your measurement in centimeters or inches and compare it with the helmet’s size chart.
No soft measuring tape? Use a piece of nonstretch string, mark where it meets, and measure it against a ruler.
Choose Your Size
Check the model, not just the brand. For example, Triple Eight’s Certified Sweatsaver and original Sweatsaver have different size charts.
If you fall between sizes, follow the manufacturer’s instructions for that model. Triple Eight and 187 Killer Pads recommend choosing the larger size when between measurements, but you should still check the fit before skating.
A Note About S1 Helmets
S1’s Mini Lifer, Lifer, and Mega Lifer use different shell sizes. Within each shell range, interchangeable sizing liners help fine-tune the fit. Check the chart for your chosen model to find your starting size.
Need Help Getting Fitted?
Bring your head—and your questions—to Rotten Hearts Skate Shop. We can help you measure, compare options, and find a comfortable fit.
Size charts are a starting point. Always follow the fit, strap-adjustment, and safety instructions included with your helmet.
Manufacturer Sizing Guides
Use the links below for each manufacturer’s measurements and model-specific guidance: