Fits wonderfully for my ASUS R510L 15.6 "laptop and it's still a little space to possibly even accommodate a few documents. Material is high quality and also shows after a few weeks in use no weaknesses. The zipper is padded from the inside, so that this also does not scratch the expensive equipment, take care you have only the one or unpack. The actual protection against water I have not maxed out, but a sudden rain, the bag has already held state.