I have the original Tarmac 25 and wanted a bit more space for a longer trip, so I ordered the 28 inch version. Upon comparison, I realized the 28 I received was not the same design as the 25. I called Eagle Creek and was informed that the Tarmac series had been redesigned in January, 2011 and the features I had grown to love had been removed. Comparing the new design to a Hovercraft that my wife has I found they had a lot in common. If I wanted the cavernous interior of the Hovercraft, that's what I would have ordered. I really liked the multiple little compartments of the original design and the shoebox (that had been removed in the new design). I returned the Tarmac 28 and fortunately found the last remaining old design on line and bought it from another retailer.