The Submarine shoulder bag/backpack is made of washed cowhide leather with a slightly shiny surface and rich texture. The bag is surprisingly lightweight and has a casual look due to the crumpled leather. It offers a large and spacious zippered compartment: 1 main zippered compartment, 2 side zippered compartments, 1 back zippered compartment, 1 inner zippered compartment, vegetable-tanned, washed cowhide leather. Lining: Cotton.