I love this bag, I have been carrying now for several months and logged quite a few rounds. It is so light, the Nike straps are the best that I have ever used, easy to get on, super cushioned with the Nike air in them. Also, it has a water-resistant pocket I can put my blackberry and wallet in. It was only $150, less than most the other really light ones.
Pros: Quality, Durability, Easy to Use, Good Value, Features, water-resistant valuables pocket