... For several laptops that go out at trade fairs and will be treated accordingly, matching bags searched, the offer at a reasonable protection a good price / performance ratio and, if necessary can be replaced when worn out ... and I ended up with this one. They do their job well, often eats even a lock on the fabric firmly, but it's okay. The pad is made of neoprene and can also compress time more laptops are pushed even in cramped compartments. Water and dirt they defy previously and also a few sections have already coped. Unfortunately, it has no way to attach a shoulder strap, but they are extremely light and provide enough space for laptop and accessories. The handles are solid, so far there is no seam dissolves and the bags will always return to their old form, even if the neoprene is squeezed times longer.