For my new job, I need to carry lots of file folders and reading materials along with laptop, cables and a lunch box or three. At the moment I'm using North Face Recon backpack and it's a hassle to store file folders in upright position. So, I'm looking at the Tumi leather expandable organizer briefcase. Those who have it, are you able to confirm if it's going to hold a lunch box or is it going to bulge out? In a backpack, I can slide a lunch box plus a few other small snack boxes and they reside at the bottom of the backpack nicely without any bulging or anything. I don't have any Tumi store where I live. Thanks.