Banjo Brothers' Mini Seat Bag is a roadie-sized bag that holds a tube, tire levers, patch kit and mini tool (each sold separately). It's made from heavy-duty 840-denier nylon with a wide-mouth opening for easy access. And you've got 360 degrees of visibility thanks to reflective accents.
Capacity: 33 cubic inches
Dimensions: 5.5 x 3 x 2.5 inches