>>2467608for two days 60 to 70L makes it easy.
something with a waist strap for long walks. doesn't need to be fancy, this pack (eurohike pathfinder II) has served me well for 8 years. chinkshit but it lasted with no real damage ????
I really like the shoulder straps and waist strap, very comfy and highly adjustable. just wish it had more top-cover for strapping a bedroll on top.