CONTRA
The straps are easy to get too short. Impossible for me to carry. The backpack sits on top of the shoulder blades.
The first "breast Spann-fixing belt" is with me on the neck (and therefore unusable), the "hip-belt" bottom sits just below the ribs (and fixes anything - so also unusable).
The dimensions for the backpack are simply not made for big and athletic men.
Sorry to back!