The man's mask fitted his face and head like a cloth helmet.

He tried to look round, but his head seemed to be stuck in a cloth helmet.

He was wearing a mask that fitted entirely over his face and skull, like a cloth helmet.

Over his skull and face was a cloth helmet that masked him completely.

A cloth helmet covered his entire head and face.

A cloth helmet masked his face except for the twin slits of eyeholes.

It was a black cloth helmet that fitted completely over his head and face.

He paid particular attention to the arch-criminal's crimson cloth helmet, and his shoes.

It wasn't really a hat, it was a cloth helmet, see?