This is a "technical" backpack with lots of incredible features but can't fit everyone: torso size is 14-15 1/2 " (neck to waist) and waist size of 22-28" for the adjustable waist belt and will carry 4800 cu. inches of "stuff". To mention a few of the features:
convertible top pocket into a fanny pack; 4200 ripstop pack cloth; versatile side pockets, access from top, sides and bottom
If you are interested, you can come and try it on and I will fit you to the harness system and waistbelt