I have decided after much back and forth, for the Flipside 400 and do not regret this purchase. I wanted a backpack where I bring except my camera equipment (Nikon D80 incl. 18-200, battery grip, flash, mini tripod, cards, remote shutter, ..) even everyday necessities with toddler (change of clothes, drinks, food, ..) , And in Flipside everything has space. The flipside is very comfortable to wear even after hours and you realize the weight barely. Especially in the crowd, I find it very convenient that no one comes to my camera equipment. Removing the camera by turning the rucksack with the hip belt forwards sparks. really good and is advantageous when the ground is wet and you do not want to leave the backpack. Even the built-in rain cover came already used and has my equipment well protected.
All in all, I'd buy it at any time again and can only express here my recommendation.
