This bag is absolutely amazing and has a very aggressive look to it, worn chest-strapped or over the shoulder. The looks and questions I get with this thing are amazing.
Extremely durable, plus the laptop flap (optional insert) in it makes it a very work appropriate pack as well. Couple that with the fact that you can take this on rough hikes and hardcore trips, and you have the most durable bag on the planet.
They (Oakley) also doesn't mention the waist strap that comes out of the bottom fold (for those heavy loads and pack-in trips) for additional support.
If you're looking for an attractive, aggressive pack that can take whatever you throw at it and then some, while still remaining in style, this is your ticket.