A bag's a bag, right? Maybe. That is until you need one to haul a truck bed's worth of gear, keep it bone dry in the driving rain and glide from point A to point B like an interpretive ice dancer. In that case, it's Arsenal Duffel Bags or bust. Built like a tank with available water-resistant and roller bag options, that cute lil gym tote of yours isn’t worthy of carrying its jockstrap.
