bullet-proof

The bullet-proof shutters, the stacks of hand-grenades, and the Gatling guns of the Sub-Treasury are tacit admissions of the fact and of the quality of the mercy expected.

Bullet-proof glass ensures safety but isn't widely available due to its high cost.

Tom put on a bullet-proof vest, just to be safe.

Tom took off his jacket, put on a bullet-proof vest, and then put his jacket back on.

Tom took off his bullet-proof vest.

If you want to visit me again, I recommend you wear a bullet-proof vest.