Flak jacket

A flak jacket is kind of like a super tough coat that protects your body from things that can hurt you. It's made out of really strong materials that can stop bullets or pieces of metal from exploding things.

Imagine you're playing in a game where everyone is throwing balls at you. You don't want to get hit, so you put on a long-sleeve shirt and some pants. But sometimes the balls are really hard, and they hurt even if they don't hit you directly on your body.

Now, imagine that instead of balls, people are shooting things or there are things exploding all around you. That's when you need a flak jacket. It's like a really, really tough version of that long-sleeve shirt and pants you wore to protect yourself from the balls.

Soldiers and police officers often wear flak jackets to protect themselves when they are in dangerous situations. It's very important to wear a flak jacket if you are going to be in a place where you might get hurt by bullets or explosions, so that you can stay safe and protected.