Looks like a cheaper + nicer version of those cheap anti-theft backpacks you see everywhere now.
Shipping from Dell ebay appears to be several weeks whereas from Dell website is a few days. Check the shipping on the backpack you order before ordering to make an informed decision. Looks like backpack in question shipping date estimation has changed since posting. Thanks barge-in hunter.
Apparently also comes with up to 5% coupon back for your next purchase and don't forget cash rewards.
Other offerings in no particular order (some are cheaper on Dell ebay but delivery times/stock)