Most reasonably large backpacks, 4000 cu in and up, will have a suspension system that transfers the load to the hips. This development traces back to the classic Kelty frame packs of the 1950s.

Maxpedition packs are essentially daypacks, adorned with a lot of MOLLE bling. The Vulture II, their largest, is listed at a mere 2810 cu in. At that volume hip transfer is not a big deal.