Uniker Middle School Student Fashionable Light Backpack Large Space School Bag (National Style) Material: High Density Waterproof Polyester Dimension: 46 W x 33 H x 20D CM Weight: 0.6kg Bag Internal Space Enough TO HOLD 15 inch Laptop The back of the Bag with breathable mesh cloth materials to Ensure that the back of comfort The back is also padded and breathable. And the waterproof strong durable polyester fabric can effectively protect the bag from water splash. The top handle provides convenient carrying options.