Topeak's RX TrunkBag DXP boasts a pop-up main compartment and expandable side panniers so it's capable of carrying plenty of gear. It's built to last with rigid molded panels mated to 600-denier polyester. And, it's packed with handy features, such as a shoulder strap, carrying handle, taillight clip and top elastic straps. There are even reflective strips for safety. Plus, Topeak's ingenious RX System makes it a snap to attach it to your Topeak RX QuickTrack rack (sold separately).
Compatible with Topeak RX QuickTrack racks (sold separately)
Capacity: 445 cubic inches
Dimensions: 12.2 x 8.1 x 6.3-9.8 inches
QuickTrack mounting overview