SAPI panels: rating and use

[Demonact]

They are rated ballistic protection level III. Is this level for the planel along or in combination with a soft armor west? Also, can they be safely used alone, without a west and what protection level will they have alone?

I am also curious to know how they are constructed.

Thanks to all who respons.

 

[P2A]

It is totally dependent on the product you are talking about and their actual rating.