The bag is well made. She does not stink to chemistry, has no bad seams and the zipper looks reasonable. The overall design of the bag is simple, has a sophisticated in my eyes. Whether the bag "Shockproof" really is, I can not (yet) judge. I go with my MacBook so far to be very careful, so that there was no situation in which a large vibration had to be collected. But I think that probably a sound attenuation and good protection should be given by the thickness of the bag. Only negative is that although is in the title, that the case for a MacBook Air should be 13 inches, this is not the case. The bag is made of a MacBook Pro 13 inch. The MacBook Air (Generation 2011) but has a bit of space in the pocket and can move. That to me is not tragic, but does not correspond to the product name. For whom is it important that the good Apple notebook plugged into an exactly matching envelope, should better buy another.