Fabric liningZip closureMATERIAL: The sling bag is made of sturdy and durable polyester, water-resistant.SIZE: 6.3*2.7*12.6 inch(L*W*H), with a long crossbody adjustable strap, smooth zipper, perfect ideal for outdoor sports (hiking, camping, climbing, cycling, etc) and travel use.Chest bag for men/women with external USB Interface: You can easily and conveniently charge your phone, tablet and other devices without opening up the backpack.STRUCTURE: Three zippered main pockets, a small zippered pockets, a front anti-theft pocket. Roomy compartment to organize your cellphone, tablet, wallet, keys, ID card, credit card, and other small personal belongings.