I liked this bag and thought it wouild be a cool backpack but it is huge! I would not want to carry that much stuff on my back! It is a great weekend, getaway or travel bag, and if needed, I can still use it as a backpack. The quality of material and construction is excellent. The patent is a soft version of a sort thing I guess you would call "LeSportsac Patent" because it is not a hard patent which I am very happy that it is not. It is difficult, if not impossible, to be disappointed with this bag!