Starfleet uses some kind of armor tunic, as seen above; it seems that pants are also armored. Soldier at picture survived hit from disruptor while giving covering fire to hopper his platoon was boarding, and which took beating; that seems to imply most of fire was disruptor-based. On other hand, another soldier did not survive direct hit in torso from 3-5 meters of distance, so it obviously has limits.
Personal forcefields were mentioned in DS9 episode "Homefront", althought no military-grade forcefields were ever seen. We can presume these forcefields are skintight, and capable of deflecting weapons fire; forcefields are probably used by special operations units, since we did not see any on only two appearances of Federation ground forces during the war.
In "Nor the Battle to the Strong" we are informed that settlement on Ajilon Prime has perimeter shields protecting it. These are also protecting underground field hospital from bombardment.
None seen.
