Patent attributes
A protective sport helmet having an interior liner capable of conforming to the head of the wearer in the fore and aft direction and/or the side-to-side direction is disclosed. The sport helmet can comprise a protective outer shell and an inner energy-absorbing liner. The liner can comprise a top portion and a base portion flexibly connected therebetween to adjust the fit of the helmet to the head of a wearer in the fore and aft direction. The liner can comprise a side liner portion and the outer shell can comprise a slider mechanism for engaging the side liner portion to adjust the fit of the helmet to the head of the wearer in the side-to-side direction. The liner can comprise a plurality of grooves to transfer energy across the liner material.