DAKINE Mini Roller Carry On Bag - 1800cu in.

Running (or even speed-walking) with a backpack on is pretty awkward. The DAKINE Mini Roller Carry-On Bag has a zip-on backpack so you can dash to the gate without a pack slopping around on your back. Then simply unzip the pack, stick it under the seat in front of you, and hoist the roller into the overhead. Urethane wheels and a retractable handle ease airport parking-lot walk-throughs when your host forgets where he parked the car.