Backpack is made from durable vegan leather material, which is water-resistant and easy to clean! Straps are also made from vegan leather combined with technical ribbon for extra durrability. Lenght for the straps are adjustable for Your needs. Lining is made from a black cotton fabric. Backpack have two inner pockets- one opened, one zippered. Bag clasps with zipper and magnet. Backpack comes in two sizes- S and M. For size chart look in footer menu or click on the link Size chart