Leggings. Jeggings. Really - why would you want to bring back that fad? I remember a time, let's just say I was about 12... when wearing leggings and oversized shirts was cool.
Notice I mentioned the oversized shirt. I didn't walk around looking like this...
I don't need to see your underwear lines, your camel toe, the top of your g-string, or anything else that should be covered by real clothes.
If you feel so inclined, you can join 400,000 or so other people on Facebook that agree with me.