If I ever need a new laptop bag I will not look anywhere else but Knomo. They have the most gorgeous laptop bags (and sleeves!) in all colors, shapes and forms. I absolutely love them all, Knomo is definitely my favourite brand for laptop bags and sleeves. They're very durable also - I've had mine for the past 3 years and it's holding up very well.
Here are my favourite Knomo laptop bags. These two are called Lola and are absolutely gorgeous. Especially the second one - it looks like a great shopping tote and not just a bag for your laptop.
And how about this elegant Knomo laptop sleeve? I think this one is to die for! Too bad I no longer need to carry my laptop anywhere, otherwise I'd be buying this one right now.