Oh as you can tell I've got 2 35mm camera bodies in there along with 6 lenses, remote cord, film, closeup filters and then there are 3 seperate compartments above it. Then outside on the front of the bag is another compartment. It also has bungie cords on the side with a holder for attaching things like a tripod which I've done...then as previously stated, it comes with a detachable bag that you could pretty much use anything for. also the part where your back is positioned is padded along with some very well padded shoulder straps that are completely adjustable and a heavily padded waist strap...there is NO discomfort in using this bag. This bag is specifically designed for nature trekkers and holds up to even the toughest of abuse. The do offer it in rain resistant and regular. It was definitely an investment that paid off for me...now I just let Andy carry it. lol. just kidding.