Material:Waterproof lightweight anti-scratch soft polyester, nylon lining, padded back panel, durable smooth zipper. The zipper with double metal sliders. Dimension: Backpack:12.6*7.5*17.7 Inches(Length*width*high), weight:1.5LB. Lunch Bag: 10.5"x7.5"x7.7"(L*D*H). Pencil bag: 8.8"x4.3"(L*H). Roomy main compartment can fit for 15.6 inch laptop. Many pockets for easily to organize your stuffs.