The EVELO expandable pannier bag was designed specifically for EVELO Electric Bicycles. It fits great on our Aries, Aurora, Orion and Luna models. There are 2 expandable fold-out side pockets and a large mid-section with numerous pockets. A shoulder strap is provided. Secure Velcro straps ensure a positive connection with your bicycle rack - yet still allow you to remove the pannier bag if you need to swap out your battery for charging at a different location. This pannier bag is valued at $69.