These are the armor sets for the teens in my book Unbound Prodigies.

To the far left we have Drian in a Mark MDXI (or 1511 in case you don't know) CQB Requisition with left gauntlet strength augmentation for optimal arm mobility and stability.

To the right of him is Azenta wearing a very old Dracovian model of the CQB Requisition. It serves the same basic purposes as Drian's, but is different cosmetically because Dracos don't need metal armor constricting them when they go into their primal form.

Next to her is Tyson. His armor isn't technically armor, it's a nanosuit. Known as the NAA (Nano Armor Augmentator), this unique suit is connected to his biological neural network and gives Tyson - and only Tyson - the capability to integrate with any form of technology operated by a computer and hack into it. Doing so will give him the ability to hack, read, and reprogram that piece of technology to know or do whatever he can think of.

And lastly we have Carti with the Mark MMC (2100) Recon / Marksman Requisition. Being lightweight she has the capability to maneuver without worrying about armor hindrance. In addition, she can turn invisible with the press of the button on her left shoulder.