Here is my problem - I'm an attorney, often wear a suit or sport coat, and commute on the El in the city. I need a bag to carry workout clothes, book, Blackberry, and often laptop and cord. I have a killer Tumi ballistic bag (gift from my lovely wife), but have suffered from a back injury over the past year, and the Tumi bag, while great, is very heavy and contributed to the injury. Since relegating it to office-only duty, I've been using a backpack which is doing wonders for my back. I hated giving up a stylish bag, but the backpack has really helped my back issues. However, I equally hate the backpack - it makes me look like I'm 15, or that I don't know how to properly wear a suit. Not to mention that it's much more satisfying to carry a proper brief bag while wearing a sharp outfit. So, what is the solution? Is there a not-terrible backpack out there?