After 14 years of reliable duty, I can go no longer without acknowledging that the backpack I got as a kid is really too small for my back and doesn't suit my wishes anymore. I'm looking for a backpack with certain properties:
• Opening from the front for easy access (recently bought a nice set of packing cubes). I currently don't have that but it seems very practical.
• I've seen some examples where the top comes up and doubles as a daybag whick I liked
• Can't go without easy access pockets on both sides of the waist strips for small items
• Enough options to clip items like my tent, tripod and carabiners with different bags
Use cases:
I'm currently intending a long world trip through Europe, some of Asia and intending to end up in Australia where I got far relatives I want to meet. I'm intending to take a lot of public transport and only fly on longer layovers or to pass parts of the world that aren't very inviting right now.
I'm taking a sleeping bag, mat and inflatable pillow which are pretty compact and together way +-2,1kg. I hope to sleep with friends and people I meet without needing them to have a bed available. I'm taking a laptop and camera gear to vlog and proceed working my job remotely.
Watchlist
I've been really intrigued by the Fjällräven Kajka series, but heard many positive stories about Osprey as well. I'm uncertain whether I should take 65L or 75L. I want to purchase a backpack that will last me for 10+ years and besides the world trip is one main plan I want to focus on, but I also go on short camping trails more often. I would want to make sure I'm prepared for longer hiking and wild camping trips, also in the mountains (I have a watchlist of climbing Kilimanjaro, potentially during the world trip but I'm besides that I see myself doing multi-days hiking trips in the Alps and Scotland).
Additional context
I'm a 180cm male and intend to get in great shape before leaving. However, I still don't want to overestimate myself and most people I've talked to say 75L is overkill for a world trip, ups your weight and removes agility. The current backpack is, I believe 60 or 65 and I feel like it would quickly get a little small. I travel with a multitool which means I can't take it as carry-on anyway so for that purpose I don't have to make the decision.