The backpack was made from vegetable-tanned leather, only the back part is made of polyester for a comfortable fit. A secret compartment with a zipper has been worked into the rear side seam. The envelope from the backpack is released with a push button and then the zipper to the main compartment can be opened. The inside of the backpack is equipped with a black cotton lining and some everyday utensils can be stored in the integrated pockets. The 2 straps are adjustable in length for individual adjustment.