This is great for days when you're lacking pockets through not wearing jackets.
You can keep your wallet, mobile phone, i-pod, keys and all the other stuff you would normally keep in jacket pockets in this bag. The bag is small in comparison to other backpacks which is great for being able to find things quickly.
It looks good and is really practical.
The only criticism I have, is that the length that the shoulder straps could be extended is a bit limited. Big built people would be well advised to try it on their backs first before purchasing.