backpack

I'm in the market for a nice backpack. Are there any that allow for the speed hump on my Jacket to stick out still? I have a photography backpack I use now and it seems to squish my hump every time I ride, so it doesn't look as good as it used to.

page 97 in the KTM Powerwear catalog I'm very happy with it and it is pretty big for what it is. I often ride around with my Nikon, in camera bag with accessories, inside it. But it is useful for smaller grocery runs like today...15 pack of 355ml cans and 12 .5L cans which pretty much filled...