Topeak DXP Trunk with Velcro
In addition to the expandable top section and rear water bottle holder, the DXP model trunk bag from Topeak includes side panels that expand to panniers to maximizing capacity for longer rides.
While not waterproof, Topeak uses a unique material process is highly weather resistant. A waterproof cover is available for purchase additionally.
Rear water bottle holder lets you carry more water on extended trips without taking up space in the bag.
Available with velcro straps to allow it to fit any brand of rear rack.
Total volume 22 Liters.