Chosen packs are Berghaus Antaeus 60 Atrek and Globe Trotter 35 litres.
Cannot find any pictures of them on the web.
I chose Globe Trotter because of long warranty - at that time it was not clear if I would stay in the UK for long, I might have to go back to Kyrgyzstan so I wanted something what would be strong enough to take a lot of beating and abuse. I use it also for storing hiking/camping equipment: I felt that assembling things before I go hiking was annoying, so I started assembling my backpack immediately after I come back from my trips. Now, if I have some spare time to walk on countryside, I can always grab my ready rucksack and "bug out". Whether you are in emergency leaving your accomodation, or going for hiking for a while, the thing in common is that you need to have all necessary things with you.
I got Berghaus for my hiking trip along Hadrian's Wall. I chose such a large volume because I planned to walk Santiago Path in Spain later with it as well, and felt I would need more space for that trip. Also, I use it to store my camping/hiking equipment, but for longer time - army rations, water bottles, socks, warm underwear, hat, batteries, compass etc.
Is weight vs comfort vs capacity an issue? - Globe Trotter is light, but uncomfortable. No wonder because the company seased to exist about 10 years ago and then the technology was not as good as now. The volume is acceptible for long trips to countryside as long as you put some gear (tent and mat) outside of the bag.
I find Berghaus a bit heavy and too big for the vast majority of my trips. However, it is very comfortable to carry and now I carry my wife's stuff in it while hiking, so it is useful.
What do you propose to carry in it realistically? - a fixed blade knife, Victorinox, army rations (usually 2 -4 + deserts in Globe Trotter, and upto 30 in Berghaus), water (1 litre in Globe Trotter and 6 litres in Berghaus), survival kit with fishing, signalling kit etc, firesteel and firestarters, compass, emergency clothing, medical kit, including a lot of things for my feet in case I need to walk a lot, water purification kit (tablets and filter), torch, brewing kit and fuel, sleeping bag. Tent goes separately.
No weapons since it is illegal to store them outside the gun-safe. Though for survival I often think airguns might be an excellent choice - there planty of small animals around, like birds, which can be hunted for food.
After I travelled back to Kyrgyzstan my attitute changed again, and considerably - there are many people who live in real wilderness and get along without a high-tech gear that I started relying less on my gear, but more on my skills of creating things using materials available around me. And it is more fun because I carry less things!