I was a little bit skeptical ordering this backpack.  I needed a light-weight rolling bag that would hold my too-heavy laptop and my lunch and be small enough to fit under any airline seat.  This bag is PERFECT!  High-quality material with lots of space inside for my 15.6 laptop that I keep in a neoprene sleeve AND the huge charger AND my kit bag with cables AND my ipad AND my lunch AND my wallet/keys/hairbrush/junk.  I could probably fit a change of clothes in there as well. This bag really has a lot of space for such a small footprint.  I actually ordered the next size up first and returned it because it was too big for my needs - the Sunny is perfect.

It rolls easy even on rough pavement.  I love the bright color choices (hot pink speckle!), but it also comes in navy and black for a more professional look. And best of all - it FITS under the seat of any airline with room to spare. This is an excellent little bag!