>>2559756>Most civilian packs and outdoor activities are going to benefit from standard long back, tall/narrow, hip-resting bags.That's because they are based on climbing packs that became popular in the 90s. The problem with internal frame climbing packs is that the weight is too far down lowering the center of gravity, because climbers lean forward and need balance, something recreational hikers don't need.
Weight should be as high up and close to the shoulders as possible so that you can walk straight up. Just like how women in Africa carry buckets of water on their heads.
Backpacks will always be a compromise and sort of a catch 22 since it's not natural to have heavy weights hanging off your back.
Pic related is a good idea, but it's just not very practical when hiking if you have strong winds or thick vegetation.