Dirt Man Motorcycle bookbag - It feels great when wearing it as a stand alone bookbag and having the adjustment with chest straps make it convenient for my husband and I to swap the bag between the two of us and have a perfect fit. The over the shoulder straps with extra padding keeps it from digging into shoulders when loaded heavy. It is comfortable on the bag and doesn't move around. Decent amount of space for a smaller bag, has cupholders, and additional rings for added clip on storage. Great product!