Kingsons KSW3041W-L Backpack With USB Function.

Waterproof and Shockproof Laptop Tablet Bag Water-resistant material Wear-resistant polyester fabric. Many layers design Inner part with bubble and patent design Suitable for 15.6 inch computers Unique headphone jack design convenient for headphone storage Special shoulder straps and back pad design that provides extra comfort The bag is equipped with a USB cable that connects the internal power bank via USB port and USB cable