Previously I had a small shoulder bag, but after a while there was no longer enough space for all my necessities. Even with a long journey, this bag became very heavy and taxing on my shoulders/neck.
That is why I went looking for a new camera bag, namely a backpack (to avoid strain on the shoulders/neck). Finally ended up with this Lowepro Tahoe BP 150.
First of all, I really liked the design, it's not too big / bulky backpack. It sits very lightly and firmly on your back, and has enough space for your equipment and extra items.
My equipment consists of: body + 18-200 lens + 18-55 lens + flash + trigger + camcorder.
Extra storage for all chargers, extra batteries, wallet, small items such as SD cards, keys, ...
I chose the blue variant, simply because that is my favorite color. I am very satisfied and couldn't live without it!