>>1676693>>1676696Looks similar like the german military backpack, their do their jobs but the strap aren't comfy and it's hurt after 5 hours extrem. At least it was my experience but they are cheap.
If you really need a heavy big boy with good quality and living in europe, get a Berghaus Atlas 2. The german army sell them for 100-120€ used and their cost new ~250€.