The Belkin Notebook sleeve for my 17-inch notebook I bought because I did not always carry my laptop in the laptop bag, but even just grab him in the backpack. I was extremely surprised at how well this envelope is processed and what protection it offers. The shell is well padded and there is no danger of scratching zippers because they are additionally protected. Just as I had imagined an optimal shell. Particularly positive, I find that can be transported in the shell in a spacious Notebook case the notebook itself. I myself use the Belkin Messenger Bag for notebooks up to 17 "chocolate / tourmaline and had so far not had any problems with it, to put the notebook in the envelope in the space provided for the laptop case. Of course, you have a little more to squeeze than usual, but ultimately it has has always fitted.