A simple and somewhat primitive form of armor still used by many space age races.
Flak Armor is a type of armor comprised of a hard outer layer and softer underside. The outer layer is usually metal sheets, while more advance versions have outer layers of ablative and/or ceramic materials better suited for dealing with plasma bolts.
The under layer is made of either simple conventional materials, or impact absorbent materials.
Flak Armor often looks like normal plates of armor over a layer of cloth and or rubber which allows it to be worn like normal clothes.
Flak armor is used from simple militias and rebels in less advance parts of the galaxy, to guards and policmen in more advance civilizations.