Packing Cube backpack for a Brain Bag?

[valpok]

Thanks for this insight; I had the same question.

[Badger]

The T-S/WF packing cube backpack will fit the BB. Note that the height dimensions are exactly the same for both bags, so you wouldn't want to pack the PCBP totally full. You could also roll the BCBP up and stash it in the BB empty, and that way you could get whatever size you want.

[jonefed]

Will either of the packing cube backpacks fits in the Brain bag? It would be nice to have a lightweight pack on a trip.