Waterproof from inside and out.

You dont have to worry about other items in your bag getting wet.

If you get wet, you can put your valuables in it, so it will not get wet even if you drop it in the water.

Strap

It comes with a strap that will help you hang it somewhere.

This strap can also be used to organize compactly.

Machine Washable

Even if it gets dirty, it can be washed repeatedly in a clean state.