Standard armors are usually issued.

Standard issue armors are usually stated this way:

Location: All
DR: 60/50
Cost: $80,000
Weight: 150
Power: E/24 hr.
LC: 1

Also grants Lifting Strength +5

Most soldiers customize their armor to at least some degree. Options can be added or traded. Most biotics, for example, favor enhancing their powers using biotic amps within their armor, trading protection for power. Most armor ends up becoming uniquely tailored to the soldier wearing it.