Examples from the Web for packsack
Once our group was out of sight of the ship, Mason threw down his packsack, sat down on a boulder and lighted a cigarette.
Then he let his hands drop, walked over and began to put on his packsack.
Dragging the skiff well above high-water mark, I stacked my stuff in it, shouldered my packsack and climbed the levee.Down the Yellowstone|Lewis R. Freeman
Mason paused halfway in the act of strapping on his packsack.
I always carry a light ax and if the weather is cold I put a blanket in my packsack.Woodcraft|E. H. (Elmer Harry) Kreps