crash helmet
motorcycle helmet
skidlid informal

A year later, in 1947, it started making motorcycle helmets.

"I'll wear my motorcycle helmet if it gets to that."

He had on a black plastic jacket and white motorcycle helmet.

As part of its new traffic law, the government set standards for motorcycle helmets.

I took a motorcycle helmet off a side chair, put it on the floor, and sat down.

My motorcycle helmet is one of the finest things I own.

In many countries the wearing of motorcycle helmets is mandatory.

The police also found a shirt with blood on it and a black motorcycle helmet.

But what was he doing there in a motorcycle helmet?

But the public safety case on motorcycle helmets is clear.