There are only 24 possible mechanically distinct armors in the game (3 types, 3 tags combined in any combination)

In general Light Armor is light and all encompassing or only protects vital areas (Buff jacket and Breast plate as examples)
In general Medium Armor is stronger versions of Light (the Reinforced armors from the book, the other two aren't notably distinct)
In general Heavy Armor is all encompassing and hardened (Full Plate)

In modern terms police flak gear is Light, SWAT gear is probably Medium.
There really aren't modern heavy armors since that isn't a thing we currently do. But I would think something like Master Chief looking armor would qualify, I.E. something that covers you all over with hard reinforced plates.

I suppose if you wanted a concealable Heavy Armor you could do a force-field that is just really expensive (probably should be an artifact)