SwissGear 5625 Getaway Weekend Backpack

SwissGear made. Can be found at Target in USA.

Business appropriate, classy design. Comments put it at around 27L capacity. The clamshell design makes it good for onebag packing. Also very light at just under 1kg (2.1lb).

Would also work reasonably well as a daypack, and fits right into any meetings you might have. laptop compartment can fit up to 15 inches. Overall, should be a great US-specific budget ($60) onebag for people just trying out onebagging for the first few times. (2-3 day vacation, etc)
 * Has trolley strap at the back!
 * Has a water bottle pocket!
 * Compression straps too!
 * And a nice side handle to grab in briefcase mode.
 * The only thing really missing is the ability to stowaway straps.