HARDSHELL
Hardshell helmets have a durable ABS, PP or PC hard shell and a liner of softer expanded polystyrene (EPS), which has very good penetration resistance and energy distribution properties. Hardshell helmets are very strong and quite forgiving in handling as the outer shell isn’t delicate to minor knocks.
EPS IMPACT FOAM
EPS features the constitutional properties of a cell. This lightweight impact foam combines high stability with great flexibility and thus offers good penetration resistance and energy distribution properties.