The energy absorbing liner is made of rigid polystyrene molded to conform to the inside of the helmet shell. Hook fastener tabs on the outside surface of the liner mate with pile fastener strips on the inside of the helmet shell, thereby simplifying liner installation and removal.

The energy absorbing liner reduces impact energy transmitted to the head.

These liners are size specific. Size Small and Regular fit only in a size regular helmet shell. Size XL and XXL fit only in a size X-Large helmet shell.

SPH-4/b helmets  require an energy absorbing liner of different density.

Gentex Part#