I use a Sony Vaio Pro 13, and it fits perfectly.
The computer is a little hard to get in and out the first few days, but the cover material is done gradually, and it becomes much more convenient after a few days.
However attention to gold logo on the front of the cover, it is composed of gold dust that leaves VERY easily. If your computer has a dark matte paint (like the Vaio Pro), the golden traces are hard to remove if they have the misfortune to drop it ...
I advise you to remove the gold logo with a toothbrush moistened upon purchase, and thus avoid any inconvenience! :)