Incase markets its popular compact backpack as the ideal Macbook 13-15" carrier. At first glance, it doesn't have the same overt hardiness of a TNF backpack, most notably with the omission of heavy duty YKK zippers. But once I loaded my laptop and a few books inside, I started to get the idea. For example, the way the padded interior laptop compartment doesn't extend to the bottom of the bag is genius -- there's no shock to the computer if I set my bag down on the floor too hard. The top handle also helps the bag fit comfortably in my hand, so it's like carrying a briefcase rather than a sack of potatoes knocking against my leg. TNF bags are better generalists, but the Incase bag has more structural integrity and padding for comfrotable computer transport.