From the Abercrombie facebook page:
The best text you've ever had! Text FITCH to 30364 and sign up for A&F Texts to get inside exclusives, info about the hottest events and more! Plus, when you sign up before 9/15, A&F will hook you up with free U.S. shipping on your next online purchase!
It also says that you need to use your free shipping before 9/30.
Might be nice to get a good clearance deal SHIPPED FREE for those teens in your life for Christmas!