This is my favourite laptop bag. I've had 2 other Incase laptop sling bags and always found the fit and finish great. They're also practical and what's important for me... not too bulky.
When I had to get a new bag for my wife's 13" Macbook I searched around a bit and found the Applestore to be cheaper than Best Buy and Futureshop... surprisingly.
I especially like the add features like fur lining, and the charging opening.