[quote=@Vandy]

Oh hush, this is her current outfit anyway. As you can see it is much more practical! 

[hider][img]http://pre15.deviantart.net/e59d/th/pre/i/2014/172/4/2/supergirl_new_52_by_fred_benes_by_tony058-d7nezvg.jpg[/img][/hider]
[/quote]

She's Kryptonian.

While I've read different theories about the aura of deus ex GODMODEWTF that prevents their suits from tearing under normal circumstances, the fact is that their bodies are more indestructible than anything they'd wear. So, but for the .0000000001% chance of a piece of Krypton happening to survive re-entry to Earth, they could pretty much go naked and it still be practical. Not modest. But still practical.