I just sold my backpack so now I would like to replace it with something that can hold a fair amount of gear ( 5d2, 2 zoom lenses, 1 prime, flash + accessories ) . I am considering the Urban Disguise 40 or 50 but I am having a hard time finding what the difference is between these 2 bags. Any info or pics/vids of the 2 would be appreciated.
Also would a Flipside 300 be any good? much cheaper option and even though I do not usually care for backpacks the low price and small size are appealing if I do need a backpack.

