Samsonite OBAG

The brainchild of designer Rooz Mousavi, the Samsonite OBAG is a roll-on bag that literally rolls on. Its rugged exterior makes it ideal for snow or any nasty weather conditions for that matter. By augmenting the design into a giant wheel, less energy is required on your part to manoeuvre it. It's even easier to drag up and down stairways in this configuration.