What is the function of photographic vest? !

I have several vests like this, which were sent to me by my company, which is of little use to me, because I only bring one lens out every time I go out to shoot.

1 The lens cover can be put in the pocket of clothes, so there are not so many pockets.

2. You can put lens paper and cleaning tools, and the lens paper can also be put together with the lens cover. As for things like brushes, first of all, you don't have time to just stand there and wipe the camera while shooting. Secondly, all cameras now have automatic dust removal function, so it is not necessary to take off the lens and brush it off at the scene.

3 can reflect professionalism and is of great significance. Professional photographers wear such vests, and everyone can see what you do.