For days when I'm not traveling too far, having to pack many layers, or need to haul meat, I really like my HPG Umlindi.
Very simple pack, but very comfortable shoulder harness. No need to run a belt for my use.
2 Nalgenes, kill kit, food, TP, rain jacket in the bag and side pockets. Jacket rolled and strapped to top, sometimes bibs on the bottom if needed.
https://www.hillpeoplegear.com/Products/CategoryID/3/ProductID/136