helmet liner

noun

1. a soft or padded lining for a helmet.
2. Military. a stiff, plastic head covering designed to be worn alone or under a steel helmet for protection.

Example Sentences

Clearly, in the view of the NFL, Windpact is doing some impressive work, which now includes the helmet liner system intended to protect the head from impacts at a variety of speeds and angles.

From Seattle Times

“There’s a fair amount we see of new ideas and innovation in the helmet liner. So the fact Riddell is working on that part of an already successful helmet to make it better for players is an important aspect of how helmets can become more and more protective.”

From Seattle Times

Army contract to improve Army and Marine Corps combat helmets by applying its technology to existing combat helmet liner pads.

From Seattle Times

Riddell has launched Precision-Fit, a state-of-the-art three-dimensional head scanning process used to build a custom-fitting, player-specific helmet liner system to provide personalized protection.

From Washington Times

When I came upon him in a restaurant in the Holiday Inn, there was no doubt that this was Jim Clark, the Jim Clark, who I remembered seeing in Selma in 1963 as a young reporter for the Chicago Daily News, with his white military helmet liner pulled down a correct two fingers above his nose, standing with a few posse members, cattle prods dangling from their belts.

From Newsweek