Come and see our amazing products. Laptop backpacks USB charging,Miasole Solar Cells: 5V-11V; 0.1A-1.7A peak charging current. Converts solar energy into electrical energy. Charge on the go.Unique USB Ports: One USB charging port along with a micro USB charging port.Ergonomic Design: Lightweight material, thick soft multi-panel ventilated padding gives you maximum back support. Adjustable shoulder straps.Storage Space: One separate large compartment holds 15.6 Inch Laptop plus 10.1 Inch tablet storage. One spacious packing compartment for daily necessities. Dual quick access side pockets for water bottle, umbrella and smaller objects. Pls confirm with us about the packing info, stock color and exact production time before placing your order.