This is the go-to folding handsaw for in your fanny pack. You have a handsaw because you like to clear the way if you encounter that 6" tree across the trail. This 5" (130mm) bladed folding saw will make the quickest work of the down tree. That way you can get back to your adventure as quick as possible.
From Silky's site:
130mm Hand Saw. Compact lightweight folding saw with 5-inch blade that will take up very little room in your pocket or backpack. Nicknamed as "Little Giant" due to its extraordinary cutting capacity.