STM's Grip is a jack-of-all-trades. Adding a hardshell case to a cover that can sleep & wake your iPad, the Grip also features a textured surface to help you hang on, and a flip-out kickstand that can hold your iPad at two different angles.
If what you need is more of a sleeve, STM's D7 is worth a look. Available in two subtle color combos (gray with green accents, or brown with orange), the D7 features a sturdy zipper along two sides, and a handy outer pocket large enough for cables, chargers, and other small odds & ends.
Yes, messenger bags are stylish. But after several years of schlepping our MacBooks and their accoutrement around in one, we were ready for something easier to carry. Backpacks--and laptop versions in particular--certainly aren’t known for being particularly fashion-forward, but we are pleased with Evolution’s sporty good looks, as well as its full complement of pockets.