You can see Senna's McLaren team spending days in the wind-tunnels testing revised helmet shapes.

Their bodies are in round helmet shapes.

Keller paused, bent his lanky frame against the rail, and studied the Rassua's gold-threaded braids in their helmet shape, and the landscape of tattooed adventures running across her shoulders and down her arms, pictures that told of her many conquests and successes, wounds and challenges.

Her hair stuck to her cheeks in a curving helmet shape.

Dark helmet shapes poured around glowing corners behind him.

The staves were not depicted as a rake and scythe as was once thought, and the head was a helmet shape.

After the U.S. Personnel Armor System for Ground Troops helmet had politically rehabilitated the German World War II helmet shape, the German Army adopted a Kevlar helmet (Gefechtshelm) in the 1990s, which sported the distinct form once more.