The Topeak MTX 2.0 TrunkBag DXP is our largest, stiffest, and most weather-resistant MTX series bag, designed using a unique material process. This trunk bag features an expandable top section and rear water bottle holder, with side panels that expand into full panniers to maximize capacity. It is compatible with all MTX QuickTrack 2.0 racks with attachable side frames, and MTX Dual Side Frames are required when using panniers on MTX BeamRacks. Ideal for extended rides and commutes, the MTX 2.0 TrunkBag DXP offers ample storage, durability, and convenience.