Talk:Tenno/@comment-26298187-20130813233228/@comment-15504212-20130816135009

I am fairly sure suits are independent entities as they were specifically created by the Orokin (presumably based on the Technocyte armors in Dark Sector). As we see in-game, the warframe-wearing Teeno (us) tend to be a good deal larger than the hostages we rescue, so even a male Tenno could fit into a smaller 'female' warframe like Nova or Mag. Some in-game lore has also described the Grineer as removing Tenno from warframes and then testing the warframes/trying to use them so I don't think they spawn or grow over the jumpsuits. It's probably just what they wear instead of warframes or under the warframe armor.