I love love the bags at Kolobags, but our parser won't pick it up (other than through the bookmarklet). This one is billed as 'super slim': Tucano’s notebook slim laptop brief in nylon for your macbook or PC is sophisticated and stylish. Features include a pull-out pocket that offers enough space for all of your accessories and a padded shoulder strap with snap-hook."

Thin vertical macbook air messenger bag if you like the style of it. TOM BIHN makes super deluxe laptop bags, backpacks, messenger bags, & briefcases.

I saw these on Fab.com today and remembered your question! I don't think Fab.com ships to Germany, but they are a super deal ($23) so if you have a friend in the US that can receive it, you can ask them to send it to you.