The UP-Rise 48 backpack holds one dSLR camera with grip, three-four lenses, flash, tripod, accessories and a laptop computer up to 15".

The really nice feature is it expands with one easy zipper motion and shrinks back down when you don’t need the room. Very convenient if you load it up for your trip, but only want to take half the gear out hiking today. Outside dimensions are 13.75×11.875×20.25 inches