I can't remember one backpack from my previous searches that suits well with your requirements, but I can suggest the best way as to look online product stores listed with various backpack items. Simply looking at the backpack image will not be enough, but you have to read the product details attached to every pic, sometimes that works to understand the specific details we are looking for within the backpack. I'm working for a resume firm online (here - resumeplus.us) and I love traveling a lot. I have roamed through various online stores before looking at various backpack items and what I have contributed above is my experiences during that time. Hope it helps a bit in your efforts.

I saw bags that cost somewhere around 150-200$ and I didn't bought one. I just put it in the backseat of the car and drive where ever I want to. I even traveled with it in the car. It was a wonderful experience to travel and make some money with music. When they say that music connects people, they probably relate to this. I made new friends that are involved in the music industry music too and we keep in touch even now. Waiting for them to come to me, in Italy. We have so much to discover, starting with Falcade, and then some other places that we'll find on travelazzi.com.