Topeak MTX 2. 0 Trunk Bag DXPJunk in the Trunk The MTX Trunk Bag DXP uses a unique material process to provide Topeak's largest, stiffest, and most weather-resistant MTX series bag. In addition to the expandable top section and rear water bottle holder, the side panels expand out into full panniers, maximizing capacity for commuting or touring. It mounts directly to MTX Quick Track(R) 2. 0 racks with attachable side frames for fast, tool-free installation. Features19. 4L capacitywith a divided main compartment and multi-stage expandable top Expandable side panniersmaximize capacity when you need more room Polyester with rigid EVA foamfor structure and weather resistance MTX Quick Track(R) 2. 0 mountingfor fast, tool-free installation on compatible racks Rear water bottle holder, mesh pocket, carrying handle, and detachable shoulder strapfor versatile transport Reflective strip and safety light clipfor added visibility SPECIFICATIONSIntended Use Commuting, Touring Capacity19. 4LMount MTX Quick Track(R) 2. 0Material600 denier polyester, rigid EVA foam Dimensions36 x 25 x 21. 5- 29 cm Weight1185g | Topeak | Mtx 2. 0 Trunkbag Dxp | Black | With Expandable Panniers | Polyester