The Z Adventure T1 is a top-tube bag which allows the rider to carry all their essentials (wallet, purse, nutrition, phone, repairs) with them on their road
The Z Aero is a frame bag designed for tri-athletes and cycling sports people who want to carry their food. The Z Aero is installed on the front of the top tube, either using non-abrasive, self-gripping straps, or using screws