Originally Posted by Harry Swan
35 liters 12x15x7" Safari pizza topbox
+1 for the Jesse pizza box.
I also have the 35L pizza box with 10" Odyssey panniers. For my tastes, it's either one or the pair. I've had my cases since this past January and I've only ridden with all three maybe once. The topcase is used for general commuting and day rides, while I use the panniers for longer, generally overnight, trips.