FMVSS 218
The federal standard every helmet sold for road use in the US must meet. It sets the baseline for how much energy a shell has to absorb before it passes anything on to your head.
- Impact absorption dropped onto flat and kerb-shaped anvils
- Penetration resistance against a pointed striker
- Retention system tested under load so the strap holds in a crash
- Minimum peripheral vision of 105° to each side






