Plus, luxury brands are now advertising all over Twitter.

"I think it's really cool that Aerie is taking this huge step forward — it's so much more than a collection."

Instagram's favorite poet opens up about the philosophy that drives her writing, activism and her relationship with fashion.

The fashion industry had its fair share of snafus, mishaps and fails this year.

Because #athleisure.

The clothing company applies its empowering #AerieREAL message to its new #AerieMAN line.