● NYLON ● Polyester lining ● Zipper closure ● FOR DAILY, HEAVY-DUTY USE - Constructed from high quanlity nylon. School, College, Traveling, Hiking, Camping, Shopping, you name it, our travel bag will be your trusty companion through it all. With one spacious main compartment as well as many storage pockets for all your needs, you can carry your laptop, cameras, tablets, iPhone, clothes & gadgets, in unparalleled fashion. ● LAPTOP SLEEVE & MESH VENTILATION BACKING，Capacity: 17L. Comes with an inner Padded Laptop Sleeve that holds up to a Laptop or iPad. Constructed with Breathable Mesh Ventilation System on the back and straps. Your comfort is important to us, the ergonomic Mesh Ventilation will keep your back cool and allow you to carry a heavy payload comfortably.● MULTIPLE COMPARTMENTS - This backpack has 4 front zipper pockets, One zippered pocket on the top front side， 1 Main large compartments ，1 small compartment 1 padded laptop compartments and smaller pockets for pens and cellphones inside. ● There are also two mesh zipper pockets insideFOR THE ADVENTURER IN YOU - Our basic travel backpacks for men and women were designed for the doers in life: Made with waterproof & durable canvas to protect your tech that allows for heavy duty, daily use. Perfect for taking it with you on a daily basis or international travel, to the edge of the world.