Whatever happens, you and your bag belong together. The Sling-it helps to keep your day job organized, but when you escape to the city for an afternoon, it also serves as a serious shoulder bag. It offers all-around protection for your books, files and other necessities, a convenient cover flap with Velcro allowing fast access, a comfortable shoulder pad, and a removable back strap for wearing on your back when biking. Briefly: the Sling-it is well thought-out. The design detail continues inside: snap hook for keys, slots for pens, broad padded shoulder strap.