This is a full size back pack that folds into itself. The back pack has a large zippered main compartment with two compartments on the bottom with a slip in pocket between the the cargo compartments. It also has adjustable shoulder strips with a carry on handle. All of this folds into the bottom of the bag and zips up making it only 7 inches by 11 inches. This was purchased at the Abraham Lincoln Presidential Library and Museum in Springfield Illinois. This is great to carry in your suitcase and you have a nice size extra bag if needed. It is new and has never been used.