This backpack is the perfect size. I'm a teacher and I use it for my Mac book air which is 13". It has just the right amount of room for me to put a purse, a water bottle, some papers I have to grade and my laptop. I also bought it for my trip to Europe where I think it's large enough for a weekend trip. It's light weight and seems pretty durable. It's comfortable on my shoulders and has nice organizers in the front and side compartments as well as a hidden pocket in the top flap.