I needed a waterproof Laptop bag for my motorbike journey to work without paying silly money. This fitted the bill perfectly it's not specifically designed to take laptops. But if you place your laptop in a neoprene skin it'll be adequately protected. And after riding to work a few times in Fairly Heavy Rain Storms it's always reached the other end bone dry on the inside.
It's not particularly spacious but enough for the Laptop a bit f Lunch and a couple of other small things.
Great little USB Stick, As others have said you only get 14 GB of the Data & the Transfer speeds aren't the best but they are acceptable. It sits fantastically on my Keyring without fear it'll damage easily or fall off.