content: This zipper case is actually padded with cheaper polyethylene foam--and only on the 2 large-panel faces of the bag only. The polyethylene foam panels are encased in a jacket of wafer-thin neoprene on the outside and nylon in the inside. Note that the edges of this bag are comprised solely of the thin neoprene/nylon shell, which I think most people would agree is not sufficient padding for your precious laptop.The only reason I don't give the ICON4-BLK bag a lower rating is that I've seen worse construction. Buyer beware--don't buy this bag sight unseen. Outer dimensions are 14.75 x 12.75 x 1.25 inches.