I remember someone saying (not sure which episode, though probably the same) that Eren lost his 3D Maneuver Gear after exiting his Titan form. I also remember seeing that myself, after exiting his titan form every time except the 2nd time he does (He had no gear on him, then, to begin with). So how was the girl inside the Female Titan able to have 3D Maneuver Gear on her, as well as a Survey Corps coat?
Note: I have finished watching the anime, but I have not read the manga. Please don't post any spoilers for me. Thank you :)
if they'd prepared maneuver gear in advance
" it is not necessary they were be holding gear in titan form, they could prepare somewhere or get from the dead army, we know female titan had planned it , so she might have prepared gear for those case.