What's the difference between in-mold and hardshell construction in half-shell helmets?

In-mold helmets have the EPS foam molded directly into the polycarbonate shell, creating a lighter, often better-ventilated helmet. Hardshell helmets have a separate, thicker ABS shell glued to the EPS foam, making them heavier but more resistant to dents, dings, and everyday abuse. Both types meet the same safety standards — the difference is in weight, durability, and price, not protection level. In-mold is preferred for performance; hardshell is better for kids, rentals, and budget buyers.