This is an unused Bergens Norway Backpack. It is in excellent unused shape. There is a large central storage compartment, There are three zipping closure compartments outside, The straps are adjustable a suede lined - the belt is adjustable. I looked for a model or info on the pack but see none. My husband is 6'3' tall and has a 36 waist - it suits him fine. It has internal framing but I don't think it is tubular - rigid but not uncomfortable. If you were/are in the military, you are familiar with Bergens. Used by Special Forces, Teams - I don't know which model this is but it is the smaller of the two that are typical to military use.