I also bought mine from American Science & Surplus  $11.25 on sale.  Funny that Amazon uses exactly the same descriptive text as Am. Sci.'s catalog ...  I hadn't thought to refer to mine as the "Absent (from home) With Out Luggage" bag like another buyer, but as sort of a combined "Every Day Carry" and "unintended overnight" bag when I'm on day trips out of my home area and it's big enough to include travel-size toiletries, change of casual shirt & socks.

One feature that hasn't been mentioned is that the flaps on the 2 front pockets include Velcro patches about 3 x 1", though the bottom corners are rounded - big enough for a one line ID patch.  Also, unless the main compartment is really overloaded, there's room under the top flap (which fastens to a Velcro strip) to slide in a rolled-up newspaper or thin jacket/sweater over the zippered main compartment.

For those that want a larger bag to carry a laptop in,  more molle straps, more pockets, a water bottle holder or different colors, I just found versions of this bag with all those features on Amazon  try selecting Sports & Outdoors category, type in "utility bag" and keep paging.