Giro Era C Helmet 2025
Wrap a soft tape measure around your head, keeping it level from front to back, just above your ears and eyebrows. Note the measurement and find your size below. The helmet should fit with a little room when the fit system is loosened, and sit low enough to protect your forehead without blocking your vision. Once you have the right size, dial in the fit with the adjustment system.
Adult helmets
| Size | Head circumference | Approx. inches |
|---|---|---|
| S | 52 – 55.5 cm | 20.5 – 21.9 in |
| M | 55.5 – 59 cm | 21.9 – 23.2 in |
| L | 59 – 62.5 cm | 23.2 – 24.6 in |
| XL | 62.5 – 65 cm | 24.6 – 25.6 in |
Race helmets
| Size | Head circumference | Approx. inches |
|---|---|---|
| XS | 52 – 53.5 cm | 20.5 – 21.1 in |
| S | 53.5 – 55.5 cm | 21.1 – 21.9 in |
| M | 55.5 – 57 cm | 21.9 – 22.4 in |
| L | 57 – 59 cm | 22.4 – 23.2 in |
| XL | 59 – 60.5 cm | 23.2 – 23.8 in |
| XXL | 60.5 – 62.5 cm | 23.8 – 24.6 in |
Youth helmets
| Size | Head circumference | Approx. inches |
|---|---|---|
| XS | 48.5 – 52 cm | 19.1 – 20.5 in |
| S | 52 – 55.5 cm | 20.5 – 21.9 in |
| M | 55.5 – 59 cm | 21.9 – 23.2 in |
Based on Giro's official snow helmet size guide (centimeters). Inches are converted and rounded; when you are between sizes, go by the centimeter measurement. Questions? Give us a call and we'll help you find the right fit.
All orders of $50 or more.
Fast, easy returns within 30 days.
Giro
The Era C helmet offers a wealth of features custom tuning of the In Form Fit System and Thermostat Control venting so your noggin doesn't get too stuffy. Experience the Era C for yourself, and you'll see why it's one of the most enduring and popular performance snow helmets available.
Certifications
CE EN1077
Fit + Adjustment
The In Form Fit System makes it easy to deail in a custom fit in seconds - even with gloves on. An ergo-friendly dial at the base of the helmet provides up to 6cm of adjustment and enhanced stability.
Vertical Tuning
Venting
Thermostat Control adjustable venting allows you to custom-tune airflow instantly with a simple, low-profile control button on the outside of the helmet
Stack Vent™ Technology
Ski
Giro
Womens
1 Year