Arcteryx spear 20. I'm quite happy with its versatility and subdued looks in all black. Globetrotter in any reasonably sized city will have it for 90 euros. I travel with it as a carry on for my 13 inch macbookpro and commute with it. I find it extremely durable, it easily cleans in black and the roll-top is great for carrying baguettes. What else could anyone want?