Very good backpack, unfortunately too short

The backpack is very solid and stable processes. The outer material is robust and high quality, reinforced the floor. The side pockets are spacious, I liked the small pockets that are integrated in the hip belt.
I would like to keep the backpack, unfortunately it is too short. I am 176cm with normal size, but for my back, the backpack is too short. When I wear the backpack, the hip belt around 10cm is too high up, in the area of ​​the navel. When I ask the carrier so long that the lap belt is also on the hip, "strangles" me the lashing / chest forward, with the carrier can be connected.
Too bad, I would have liked to use it. Great product, not suitable for me.
Note: This is to the 35L model.