Super durable, like all Oakley products. This pack is perfect for a student or a professional who needs to carry around a laptop.
Overall it's an amazing backpack, with a ton of versatility. I'm a freelance designer and I use this pack everyday to carry my computer, and it'd held up and then some. Like anything and everything that Oakley makes, the material is top notch quality, so it's as durable at it gets.
I love the way it looks. The design is sober and make me look professional in any situation.
I have a 15.3 inch Macbook Pro, and I use this pack primarily to store it...and it fits perfectly.