This was a laptop bag designed to carry a laptop, books, papers, and everything else.  It has two interior compartments with heavy-duty zippers and closed-cell foam padding to protect a computer, plus a variety of exterior pockets.  The shoulder strap is made of wide, sturdy seatbelt-style webbing.  It also has stow-able backpack straps for ergonomics and versatility, and is decorated all over with reflective piping.