Do you know what clothes are? They are things that we wear to cover our body, keep us warm, and to look cool. High-visibility clothing is a type of clothing that is very, very bright and colorful. They are usually made in colors that are easy to see like yellow, orange, green, or red.
You may have seen people wearing high-visibility clothing when they are working outside, like construction workers, police officers, or crossing guards. These clothes help people to see them more easily, even from far away. That's called visibility.
The reason for wearing high-visibility clothing is to stay safe. When people wear these brightly colored clothes, they are easier to spot, especially when it's dark outside or light is low. For example, when you are driving on the road, high-visibility vests keep you visible to other drivers, which helps to prevent accidents.
So, to sum it up, high-visibility clothing is very bright and colorful and helps people be seen better. It is worn to keep people safe when working outside, directing traffic, or doing anything else where being seen is important.