Armor MkI and either Armor MkIV or Production Upgrade
Leads to:
Advanced Regenerative Armor Tech
Gameplay:
1 unit/sec armor regeneration, +$25 player clone cost
Special materials can be developed by your research team that have the ability to replicate themselves. When combined with your armor technology, this produces a powerful self-healing armor, making your employees able to stay on duty for longer without having to return to the cloning facilities for repair.