I have several "day packs" that I use as edc or for short trips. They're really good, I really like them. But above 10kg of load they tend to hang down and land on my ass, making longer trips uncomfortable. Even german army sleeping pad I put inside to reinforce it doesn't help much. Pic related, I really like that one.>>1523313
That's not a bad idea, I actually took old backpack frame, attached milsurp webbing to it and mounted old czechoslovak army bag on it, feels really good. But it's still too big for short trips.