Osprey 55 Litre Ariel pack. Completely adjustable back and shoulder support, mouldable hip pads, and super lightweight. Top cap of backpack can detach and used for a day pack.
This backpack has maybe been used 5 times, I love the pack. Just don't hike/tour much anymore and don't have need for it. It is absolutely perfect for multi-day or big day trips.
Paid $350 for it.
Would be perfect for any adventure